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  • Global Positioning System

    Global Positioning System

    • This piglix contains articles or sub-piglix about Global Positioning System

    • GPS navigation devices

    • This piglix contains articles or sub-piglix about GPS navigation devices


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    • Geocaching

    • This piglix contains articles or sub-piglix about Geocaching


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    • GPS satellites

    • This piglix contains articles or sub-piglix about GPS satellites


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    • GPS sports tracking applications

    • This piglix contains articles or sub-piglix about GPS sports tracking applications


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    • Location-based games

    • This piglix contains articles or sub-piglix about Location-based games


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    • GPS navigation software

    • This piglix contains articles or sub-piglix about GPS navigation software


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    • WAAS reference stations

    • This piglix contains articles or sub-piglix about WAAS reference stations


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    • Global Positioning System

    • The Global Positioning System (GPS) is a space-based radionavigation system owned by the United States Government (USG) and operated by the United States Air Force (USAF)." It is a global navigation satellite system (GNSS) that provides geolocation and time information to a GPS receiver in all weather conditions, anywh ... Read »


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    • 2d Space Operations Squadron

    • 2d Space Operations Squadron

      The 2d Space Operations Squadron (2 SOPS) is a unit of the United States Air Force at Schriever Air Force Base, Colorado. Its mission is to manage the Navstar Global Positioning System satellite constellation for global navigation, time transfer, and nuclear detonation detection. 2 SOPS is augmented by Reserve personn ... Read »


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    • Allsport GPS

    • Allsport GPS is a fitness tracking phone application combined with a website. It uses GPS to provide performance statistics and is run on a GPS-enabled cell phone. The GPS gives Allsport GPS a precise way of measuring statistics such as pace, speed, time and distance. Users can view their route overlaid on a map. The a ... Read »


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    • Assisted GPS

    • Assisted GPS (abbreviated generally as A-GPS and less commonly as aGPS) is a system that often significantly improves startup performance—i.e., time-to-first-fix (TTFF), of a GPS satellite-based positioning system. A-GPS is extensively used with GPS-capable cellular phones, as its development was accelerated by th ... Read »


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    • Automated Flight Following

    • Automated flight following (AFF) is GPS aircraft tracking that is mandated by a government agency (or other governing body) for its contractors. The following criteria must be met: Common uses for AFF devices are contractors flying for USDA during fire season and contractors flying for utility companies. ... Read »


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    • Automatic vehicle location

    • Automatic vehicle location (AVL or ~locating; telelocating in EU) is a means for automatically determining and transmitting the geographic location of a vehicle. This data, from one or more vehicles, may then be collected by a vehicle tracking system for a picture of vehicle travel. As of 2017, the technology has reach ... Read »


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    • Automotive navigation system

    • An automotive navigation system is part of the automobile controls or a third party add-on used to find direction in an automobile. It typically uses a satellite navigation device to get its position data which is then correlated to a position on a road. When directions are needed routing can be calculated. On the fly ... Read »


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    • Navigation Data Standard

    • Navigation Data Standard (NDS) e.V.

      Navigation Data Standard (NDS) is a standardized format for automotive-grade navigation databases, jointly developed by automobile manufacturers and suppliers. NDS is an association registered in Germany. Members are automotive OEMs, map data providers, and navigation device/application providers. NDS aims at developi ... Read »


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    • Clairaut's theorem


    • Clock drift

    • Clock drift refers to several related phenomena where a clock does not run at exactly the same rate as a reference clock. That is, after some time the clock "drifts apart" or gradually desynchronizes from the other clock. This phenomenon is used, for instance, in computers to build random number generators. On the nega ... Read »


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    • Comparison of commercial GPS software

    • This is a list of notable commercial Global Positioning System (GPS) software for various device, with a specific focus on mobile phones, tablets, tablet PC's, (Android, iOS, Windows). ... Read »


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    • Dash Express

    • The Dash Express is an Internet-enabled personal navigation device manufactured by Dash Navigation Dash Express transmits information using a GPRS connection back to Dash Navigation in order to enhance traffic routing. At this time, the Dash Express can only be used in the US. In June 2009, Research in Motion has acqu ... Read »


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    • Defense Advanced GPS Receiver

    • The AN/PSN-13 Defense Advanced GPS Receiver (DAGR; colloquially, "dagger") is a handheld GPS receiver used by the United States Department of Defense and select foreign military services. It is a military-grade, dual-frequency receiver, and has the security hardware necessary to decode the encrypted P(Y)-code GPS signa ... Read »


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    • Degree Confluence Project

    • The Degree Confluence Project is a World Wide Web-based, all-volunteer project which aims to have people visit each of the integer degree intersections of latitude and longitude on Earth, posting photographs and a narrative of each visit online. The project describes itself as "an organized sampling of the world". ... Read »


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    • DeLorme

    • DeLorme

      DeLorme is a producer of personal satellite tracking, messaging, and navigation technology. The company’s main product, inReach, integrates GPS and satellite technologies. inReach provides the ability to send and receive text messages anywhere in the world (including when beyond cell phone range) by using the Irid ... Read »


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    • Differential GPS

    • Differential Global Positioning System (DGPS) is an enhancement to Global Positioning System that provides improved location accuracy, from the 15-meter nominal GPS accuracy to about 10 cm in case of the best implementations. DGPS uses a network of fixed, ground-based reference stations to broadcast the difference bet ... Read »


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    • Digital anchor

    • A digital anchor uses a location system (such as GPS) to provide dynamic positioning control of a stationary vehicle in a dynamic environment, such as a boat or ship being affected by currents and wind. ... Read »


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    • Dilution of precision (navigation)

    • Dilution of precision (DOP), or geometric dilution of precision (GDOP), is a term used in satellite navigation and geomatics engineering to specify the additional multiplicative effect of navigation satellite geometry on positional measurement precision. The concept of dilution of precision (DOP) originated with u ... Read »


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    • Dwell time (GNSS)

    • The dwell time in GNSS is the time required to test for the presence of a satellite signal for a certain combination of parameters. A GNSS satellite can be detected if it is present or not on a sky through a process, based on correlation of a received signal with a reference signal stored in the . The dwell times are ... Read »


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    • Earthscope

    • Earthscope is an earth science program using geological and geophysical techniques to explore the structure and evolution of the North American continent and to understand the processes controlling earthquakes and volcanoes. The project has three components: USARRAY, the Plate Boundary Observatory, and the San Andreas ... Read »


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    • Roger L. Easton

    • Roger L. Easton

      Roger Lee Easton, Sr. (April 30, 1921 – May 8, 2014) was an American scientist/physicist who was the principal inventor and designer of the Global Positioning System, along with Ivan A. Getting and Bradford Parkinson. He was born in Craftsbury, Vermont. In 1955, Easton co-wrote the Naval Research Laboratory's ... Read »


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    • ECEF

    • ECEF ("earth-centered, earth-fixed"), also known as ECR ("earth-centered rotational"), is a geographic coordinate system and Cartesian coordinate system, and is sometimes known as a "conventional terrestrial" system. It represents positions as an X, Y, and Z coordinate. The point (0,0,0) is defined as the center of mas ... Read »


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    • Enhanced GPS

    • Enhanced GPS (or E-GPS, EGPS, trademarked as eGPS) is a technology designed for mobile phones on GSM and W-CDMA networks, to augment GPS signals to deliver faster location fixes, lower cost implementations and reduced power and processing requirements. It is being developed by CSR who has partnered with Motorola – ... Read »


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    • ERM Telematics

    • Telematics, Vehicle Tracking, ERM Electronic Systems ltd. Aka: ERM Advanced Telematics is an Israeli electronic company focused on the design, development and manufacture of vehicle security & GPS tracking devicess for the telematics and fleet management industry. ERM Advanced Telematics has a global operation offerin ... Read »


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    • Error analysis for the Global Positioning System

    • The analysis of errors computed using the Global Positioning System is important for understanding how GPS works, and for knowing what magnitude of errors should be expected. The Global Positioning System makes corrections for receiver clock errors and other effects but there are still residual errors which are not cor ... Read »


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    • EUREF Permanent Network

    • EUREF Permanent Network (EPN) is a European Network of more than 200 continuously operating GNSS reference stations with precisely known coordinates referenced to the ETRS89. EPN is the key instrument in the maintenance of ETRS89 geodetic datum. The EPN stations collect continuously the observation data from high accur ... Read »


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    • European Geostationary Navigation Overlay Service

    • EGNOS

      The European Geostationary Navigation Overlay Service (EGNOS) is a satellite based augmentation system (SBAS) developed by the European Space Agency, the European Commission and EUROCONTROL. It supplements the GPS, GLONASS and Galileo satellite navigation systems by reporting on the reliability and accuracy of their po ... Read »


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    • Fleet telematics system

    • A Fleet Telematics System (FTS) allows the information exchange between a commercial vehicle fleet and their central authority, i.e., the dispatching office. A FTS typically consists of mobile Vehicle Systems (VS) and a stationary Fleet Communication System (FCS). The FCS may be a stand alone application maintained by ... Read »


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    • Comparison of free off-line GPS software

    • This article contains a list with gratis (but not necessarily open source) software for a range of devices (PC, laptop, tablet PC, mobile phone, handheld PC (Pocket PC, Palm)). Some of the free software mentioned here does not have detailed maps (or maps at all) or the ability to follow streets or type in street names ... Read »


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    • Freenex

    • Public Industry Auto parts, Electronics Founded 2002 Headquarters South Korea
      Key people
      Lee Woo Yeol (CEO) Products Global Positioning System, Navigation Website http://www.freenex.co.kr (Korean)
      Freenex
      Hangul Freenex Co, Ltd.

      Freenex Co, Ltd. is a Korea's group of navigation system in electronics and automotive company. headquartered in Gil-dong Gangdong-gu Seoul, Korea. established in 2002. The Freenex's companies that develops consumer and aviation technologies navigation for the Global Positioning System. Freenex also creates OEM product ... Read »


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    • Furuno

    • Furuno Electric Co., Ltd.

      US$ 734 million (FY 2013) US$ -6.4 million (FY 2013) Furuno Electric Co., Ltd. (古野電気株式会社, Furuno Denki Kabushiki-gaisha?) (commonly known as Furuno) is a Japanese electronics company whose main products are marine electronics, including radar systems, fish finders and navigati ... Read »


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    • Garmin

    • Garmin Ltd.

      Garmin Ltd. (shortened to Garmin and formerly known as ProNav) is an American multinational technology company founded by Gary Burrell and Min Kao in 1989 in Lenexa, Kansas and is based in Schaffhausen, Switzerland. The company is known for its specialization in GPS technology development for its use in automotive, av ... Read »


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    • Geo-fence

    • A geo-fence is a virtual perimeter for a real-world geographic area. A geo-fence could be dynamically generated—as in a radius around a store or point location, or a geo-fence can be a predefined set of boundaries, like school attendance zones or neighborhood boundaries. The use of a geo-fence is called geo-fenci ... Read »


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    • Geocaching

    • Geocaching

      Geocaching /ˈdʒiːoʊˌkæʃɪŋ/ is an outdoor recreational activity, in which participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers, called "geocaches" or "caches", at specific locations marked by coordinates all ... Read »


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    • Geodetic datum

    • A geodetic datum or geodetic system is a coordinate system, and a set of reference points, used to locate places on the Earth (or similar objects). An approximate definition of sea level is the datum WGS 84, an ellipsoid, whereas a more accurate definition is Earth Gravitational Model 2008 (EGM2008), using at least 2,1 ... Read »


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    • Geohashing

    • Geohashing /ˈdʒiːoʊˌhæʃɪŋ/ is an outdoor recreational activity inspired by the xkcd webcomic, in which participants have to reach a random location (chosen by a computer algorithm), prove their achievement by taking a picture of a Global Positioning System (GPS) receiver or another mobile dev ... Read »


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    • GeoSpy

    • GeoSpy is an outdoor recreational activity which combines geographic locations and maps with photography in a location-based game. To play the game requires a camera and a mobile Global Positioning System (GPS) device. There are several goals in the game, but the primary one is to find and create objects through pictu ... Read »


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    • Geotagging

    • Geotagging (also written as GeoTagging) is the process of adding geographical identification metadata to various media such as a geotagged photograph or video, websites, SMS messages, QR Codes or RSS feeds and is a form of geospatial metadata. This data usually consists of latitude and longitude coordinates, though the ... Read »


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    • Ivan A. Getting

    • Ivan Alexander Getting (January 18, 1912 – October 11, 2003) was an American physicist and electrical engineer, credited (along with Roger L. Easton and Bradford Parkinson) with the development of the Global Positioning System (GPS). He was the co-leader (the other being Louis Ridenour) of the research group which ... Read »


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    • GNSS enhancement

    • GNSS enhancement refers to techniques used to improve the accuracy of positioning information provided by the Global Positioning System or other global navigation satellite systems in general, a network of satellites used for navigation. Enhancement methods of improving accuracy rely on external information being inte ... Read »


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    • GPS Aided GEO Augmented Navigation

    • The GPS Aided GEO Augmented Navigation (GAGAN) is an implementation of a regional satellite-based augmentation system (SBAS) by the Indian government. It is a system to improve the accuracy of a GNSS receiver by providing reference signals. The AAI’s efforts towards implementation of operational SBAS can be viewed ... Read »


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    • GPS aircraft tracking

    • A GPS aircraft tracking solution is made possible when an aircraft is fitted with a GPS receiver. By communication with GPS satellites, detailed real-time data on flight variables can be passed to a server on the ground. This server stores the flight data which can then be transmitted by using telecommunications ne ... Read »


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    • GPS Block IIF

    • GPS Block IIF

      GPS Block IIF, or GPS IIF is an interim class of GPS (satellite), which will be used to keep the Navstar Global Positioning System operational until the GPS Block IIIA satellites become operational. They are being built by Boeing, and will be operated by the United States Air Force following their launch by United Laun ... Read »


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    • GPS·C


    • GPS Exchange Format

    • GPX, or GPS Exchange Format, is an XML schema designed as a common GPS data format for software applications. It can be used to describe waypoints, tracks, and routes. The format is open and can be used without the need to pay license fees. Location data (and optionally elevation, time, and other information) is stored ... Read »


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    • GPS for the visually impaired

    • Since the Global Positioning System (GPS) was introduced in the late 1980s there have been many attempts to integrate it into a navigation-assistance system for blind and visually impaired people. Corsair is a GPS for pedestrians. It allows you to discover places around you and take you there. A new way of guidan ... Read »


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    • GPS meteorology

    • GPS meteorology refers to the use of the effect of the atmosphere on the propagation of the Global Positioning System's (GPS) radio signals to derive information on the state of the (lower, neutral) atmosphere. There are currently two main operational techniques in use in GPS meteorology: GPS limb sounding from orbit, ... Read »


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    • GPS Block IIIA

    • GPS Block IIIA

      GPS Block IIIA, or GPS III is the next generation of GPS satellites, which will be used to keep the Navstar Global Positioning System operational. Lockheed Martin is the contractor for the design, development and production of the GPS III Non-Flight Satellite Testbed (GNST) and the first eight GPS III satellites. The U ... Read »


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    • GPS navigation device

    • A GPS navigation device or GPS receiver, and when used for vehicle navigation commonly referred to simply as a GPS, is a device that is capable of receiving information from GPS satellites and then to accurately calculate its geographical location. The Global Positioning System (GPS) is a global navigation satellite sy ... Read »


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    • GPS navigation software

    • GPS navigation software usually falls into one of the following two categories: A track is a trace of somewhere that you have actually been (often called a "breadcrumb trail"). The GPS unit (external or internal) periodically sends details of the location which are recorded by the software, either by taking a read ... Read »


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    • GPS puck

    • GPS puck has two meanings. It is a term for the antenna on GPS navigation devices, which receives GPS signals from GPS satellites. The early antennas were round, and thus had the appearance of a hockey puck. Alternatively, a GPS puck is a full puck-sized GPS system (receiver and antenna). ... Read »


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    • GPS satellite blocks

    • A GPS satellite is a satellite used by the NAVSTAR Global Positioning System (GPS). The first satellite in the system, Navstar 1, was launched February 22, 1978. The GPS satellite constellation is operated by the 50th Space Wing of the United States Air Force. The GPS satellites circle the Earth at an altitude of abou ... Read »


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    • GPS signals

    • Global Positioning System (GPS) satellites broadcast microwave signals to enable GPS receivers on or near the Earth's surface to determine location, velocity, and time. The GPS system itself is operated by the U.S. Department of Defense (DoD) for use by both the military and the general public. GPS signals include ran ... Read »


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    • GPS timing

    • A radio clock or radio-controlled clock (RCC) is a clock that is automatically synchronized by a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock. Such a clock may be synchronized to the time sent by a single transmitter, such as many national or regional time transmitte ... Read »


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    • GPS tracking unit

    • A GPS tracking unit is a device, normally carried by a moving vehicle or person, that uses the Global Positioning System to determine and track its precise location, and hence that of its carrier, at intervals. The recorded location data can be stored within the tracking unit, or it may be transmitted to a central loca ... Read »


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    • GPS tracking server

    • A vehicle tracking system combines the use of automatic vehicle location in individual vehicles with software that collects these fleet data for a comprehensive picture of vehicle locations. Modern vehicle tracking systems commonly use GPS or GLONASS technology for locating the vehicle, but other types of automatic veh ... Read »


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    • GPS Tuner

    • GPS Tuner is the name of a software company based in Budapest, Hungary, and of a software product they make. The software is a tool intended for off-road navigation based on the Global Positioning System (GPS), where it is used to determine position while cycling, hiking, geocaching, boating, flying, driving, and many ... Read »


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    • GPS watch

    • A GPS watch is a device with integrated GPS receiver that is worn as a single unit strapped onto a wrist, in the manner of a watch. The watch can have other features and capabilities depending on its intended purpose and be an smart watch. GPS watches are most often used for sports and fitness purposes. Many can connec ... Read »


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    • GPS wildlife tracking

    • GPS wildlife tracking is a process whereby biologists, scientific researchers or conservation agencies can remotely observe relatively fine-scale movement or patterns in a free-ranging wild animal using the Global Positioning System and optional environmental sensors or automated data-retrieval technologies such as Ar ... Read »


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    • GPS-based game

    • A location-based game (or location-enabled game) is a type of pervasive game in which the gameplay evolves and progresses via a player's location. Thus, location-based games must provide some mechanism to allow the player to report their location, frequently this is through some kind of localization technology, for exa ... Read »


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    • GPS2SMS

    • The GPS2SMS term describes the transfer of co-ordinates of an object or person by means of SMS text messaging. For this, the following applications are suitable: SMS messages can be sent from any device that has a GSM modem or phone and a GPS receiver. There are commercial handheld devices in the market, built-in syst ... Read »


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    • GPSBabel

    • GPSBabel

      GPSBabel is a cross-platform, free software to transfer routes, tracks, and waypoint data to and from consumer GPS units, and to convert between over a hundred types of GPS data formats. It has a command-line interface and a graphical interface for Windows, MacOS, and Linux users. GPSBabel is part of many Linux distri ... Read »


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    • Gpsd

    • gpsd is a daemon that receives data from a GPS receiver, and provides the data back to multiple applications such as Kismet or GPS navigation software. It thus provides a unified interface to receivers of different types, and allows concurrent access by multiple applications. It is commonly used on Linux and FreeBSD s ... Read »


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    • GpsDrive

    • GpsDrive

      GpsDrive is a computer program designed to act as a vehicle navigation system. The program displays its user's position, obtained from an NMEA-capable GPS receiver, on a zoomable map drawn on a computer screen. The map file is automatically selected depending on the position and preferred scale. Currently, GpsDrive us ... Read »


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    • GpsGate

    • GpsGate is a software platform for Internet-based GPS tracking and GPS sharing. GpsGate is owned by Franson Technology AB, a company located in , Sweden, specialized in GPS software development. Franson Technology AB was founded in 2004 by the current CEO Johan Franson. GPS software for Windows Vista/XP/2k/NT/ME/9 ... Read »


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    • GpsOne

    • gpsOne is the brand name for a cellphone chipset manufactured by Qualcomm that allows cell phones to more accurately plot a user's position, using a technology referred to as A-GPS or Assisted-GPS. For differences between GPS and A-GPS methods, please see their respective articles. Some vendors are also looking at ... Read »


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    • GTX Corp

    • GTX Corp

      GTX Corp (OTCMKTS:GTXO) is a technology licensee that develops miniaturized Global Positioning System (GPS) tracking technology for a wide variety of consumer branded products. GTX Corp is a holding company that owns and operates two subsidiaries engaged in the IoT and wearable technology business. Global Trek Xpl ... Read »


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    • Handheld GPS

    • A Personal Navigation Assistant (PNA) also known as Personal Navigation Device or Portable Navigation Device (PND) is a portable electronic product which combines a positioning capability (such as GPS) and navigation functions. Some PNA devices are PDAs with limited features and can be unlocked. The earliest PNAs ... Read »


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    • ICN GPS

    • The iCNxxx series is a range of automotive navigation systems from Navman. These include the iCN320, iCN330, iCN510, iCN520, iCN530, iCN550, iCN610, iCN630, iCN635, and iCN650. All the iCN products include address to address routing, spoken guidance instructions and a 2-D display. The 600 series do not have a battery ... Read »


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    • Indian Regional Navigation Satellite System

    • Navigation with Indian Constellation (NAVIC)
      Indian Regional Navigation Satellite System (IRNSS)

      The Indian Regional Navigation Satellite System (IRNSS) with an operational name of NAVIC ("sailor" or "navigator" in Sanskrit, Hindi and many other Indian languages, which also stands for NAVigation with Indian Constellation) is an autonomous regional satellite navigation system that is being set up by India, that wil ... Read »


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    • Inside GNSS

    • Inside GNSS

      (In order of number of subscribers) Inside GNSS is an international controlled circulation trade magazine owned by Gibbons Media and Research LLC. It covers space-based positioning, navigation and timing (PNT) technology for engineers, designers and policy-makers of global navigation satellite systems (GNSS). In the U ... Read »


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    • Interagency GPS Executive Board

    • The Interagency GPS Executive Board (IGEB) was an agency of the United States federal government that sought to integrate the needs and desires of various governmental agencies into formal Global Positioning System Planning. GPS was administered by the Department of Defense, but had grown to service a wide variety of c ... Read »


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    • Ionospheric pierce point

    • Most global navigation satellite systems (GNSS) are subjected to errors induced by the ionosphere. Because ionospheric delay affects the speed of microwave signals differently depending on their frequency—a characteristic known as dispersion, delays measured on two or more frequency bands can be used to measure di ... Read »


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    • ISight GPS

    • iSight GPS vehicle tracking systems were introduced by RFTrax in June 2008 to provide consumers and small businesses inexpensive real-time vehicle GPS using RFTrax asset tracking technologies. The iSight-CT model was designed for parents to monitor their most valuable and often at risk asset; their teenage drivers. A s ... Read »


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    • Isuzu Motors

    • Isuzu Motors Ltd.
      いすゞ自動車株式会社

      Isuzu Motors Ltd. (いすゞ自動車株式会社, Isuzu Jidōsha Kabushiki-Kaisha?) (: ), trading as Isuzu (Japanese pronunciation: [isuzu], /iˈsuːzuː/), is a Japanese commercial vehicles and diesel engine manufacturing company headquartered in Tokyo. Its principal activity ... Read »


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    • Itinerary file

    • ITN, is a file format designed as an itinerary data format for TomTom devices. It can be used to describe itineraries using support waypoints. The format is proprietary for TomTom. Its data store location, name, and waypoint type and can in this way be used to interchange data between GPS devices and software packages ... Read »


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    • Ituran

    • Ituran Location and Control Ltd.

      Ituran Location and Control Ltd. is an Israeli company that provides stolen vehicle recovery and tracking services, and markets GPS wireless communications products. Ituran is traded on NASDAQ and the and is included in the TA-100 Index. Ituran has over 1,300 employees worldwide and is a market leader in Brazil, Argen ... Read »


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    • Joint Precision Airdrop System

    • The Joint Precision Airdrop System (JPADS) is an American military airdrop system which uses the GPS, steerable parachutes, and an onboard computer to steer loads to a designated point of impact (PI) on a drop zone (DZ). It integrates the US Army's Precision and Extended Glide Airdrop System (PEGASYS) and the Air Force ... Read »


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    • Joint Precision Approach and Landing System

    • The Joint Precision Approach and Landing System (JPALS) is a military, all-weather landing system based on real-time differential correction of the Global Positioning System (GPS) signal, augmented with a local area correction message, and transmitted to the user via secure means. The onboard receiver compares the curr ... Read »


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    • Lexus Link

    • Lexus Link, launched October, 2000, is a subscription-based safety and security service from Lexus. It has been offered as a factory-installed option, available on certain Lexus models (LX, GX, LS, and GS), offering call-center-based telematics services to owners with equipped vehicles in the United States and Canada. ... Read »


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    • Ligado Networks

    • Ligado Networks

      Ligado Networks is an American satellite communications company developing a satellite-terrestrial network to support 5G and Internet of Things applications in North America. The Reston, Virginia-based company has 40 MHz of spectrum licenses in the nationwide block of 1500 MHz to 1700 MHz spectrum in the L-Ban ... Read »


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    • List of Garmin products

    • Garmin is a company that produces consumer, professional aviation, and marine devices that make use of the Global Positioning System for navigational assistance. Devices such as hand-held GPS units, in-vehicle units are common. The following is list of current and discontinued products produced by Garmin Ltd. NOTE: Ea ... Read »


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    • List of GPS satellites

    • As of February 2016, 72 Global Positioning System navigation satellites have been launched; not all remain operational. The minimum number of satellites for a full constellation is 24 operational 95% of the time; the current number exceeds this. The target number is 33 and decommissioned reserves are available to maint ... Read »


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    • Local Area Augmentation System

    • The Local Area Augmentation System (LAAS) is an all-weather aircraft landing system based on real-time differential correction of the GPS signal. Local reference receivers located around the airport send data to a central location at the airport. This data is used to formulate a correction message, which is then transm ... Read »


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    • Location Intelligence Conference

    • The Location Intelligence Conference brings together business leaders to discuss how to generate revenue, cut costs, improve workflow efficiency and gain competitive advantage by implementing location-related technology solutions within their organizations. The event therefore seeks to provide an educational forum to d ... Read »


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    • Location-based game

    • A location-based game (or location-enabled game) is a type of pervasive game in which the gameplay evolves and progresses via a player's location. Thus, location-based games must provide some mechanism to allow the player to report their location, frequently this is through some kind of localization technology, for exa ... Read »


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    • Locationized gun

    • This article is about guns that can be fired only in authorized locations. For guns that can be fired only by authorized users, see Smart gun. For self-aiming weapon systems, see Smartgun and Sentry gun. A locationized gun is one that uses electronic technologies such as geofencing to restrict its firing to authorized ... Read »


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    • Loran-C

    • Loran-C was a hyperbolic radio navigation system which allowed a receiver to determine its position by listening to low frequency radio signals transmitted by fixed land-based radio beacons. Loran-C combined two different techniques to provide a signal that was both long-range and highly accurate, traits that had forme ... Read »


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    • LRK

    • Long Range Kinematic (LRK) technology is a sophisticated kinematic method developed by Magellan (formerly Thales) Navigation that optimises the advantages of dual-frequency GPS operation. Other conventional methods use the dual-frequency only during initialisation. LRK makes solving ambiguities during initialisation ea ... Read »


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    • Ollie Luba

    • Oleh "Ollie" R. Luba is an American systems engineer, aerospace engineer, and program manager who was worked on the early development of the GPS III (Global Positioning System, Block IIIA). He was born in Logan, Philadelphia. He currently works at Lockheed Martin, and has for more than 28 years. Ollie Luba was bor ... Read »


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    • Machine guidance

    • The term Machine Guidance is used to describe a wide range of techniques which improve the productivity of agricultural, mining and construction equipment. It is most commonly used to describe systems which incorporate GPS, Motion Measuring Units (MMU) and other devices to provide on-board systems with information abou ... Read »


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    • Magellan Navigation

    • Magellan Navigation

      Magellan Navigation, Inc. is an American producer of consumer and professional grade global positioning system receivers, named after Ferdinand Magellan, the first explorer to circumnavigate the globe. Headquartered in San Dimas, California, with European sales and engineering centers in Nantes, France and Moscow, Russ ... Read »


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    • Map database management

    • Map database management systems are software programs designed to efficiently store and recall spatial information. They are widely used in localization and navigation, especially in automotive applications. Moreover, they are playing an increasingly important role in the emerging areas of Location-based services, Acti ... Read »


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    • MoNav

    • MoNav (short for MObile NAVigation) is a free, car navigation system with GPS tracking, realtime routing engine. It uses data from the OpenStreetMap project. It supports multiple platforms and supports car, foot and bicycle navigation. The software includes a local navigation daemon and a client. There is also a prepr ... Read »


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    • MSAT

    • MSAT, short for Mobile Satellite, is a satellite-based mobile telephony service developed by the National Research Council of Canada. Supported by a number of companies in the US and Canada, MSAT hosts a number of services, including the broadcast of CDGPS signals. The MSAT satellites were built by Hughes (now owned by ... Read »


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    • National Executive Committee for Space-Based Positioning, Navigation and Timing

    • The National Executive Committee for Space-Based Positioning, Navigation and Timing (PNT) is a United States Government organisation which advises and coordinates federal departments and agencies on matters concerning the Global Positioning System, space navigation, navigational references, and related systems. It was ... Read »


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    • National GPS Network

    • The British National GPS Network, known as OS Net, is a network of global navigation satellite system GNSS base stations covering Great Britain. It is managed by Ordnance Survey. It provides access to a stable, national coordinate reference system (through downloaded GNSS data) that allows highly accurate location to ... Read »


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    • Navit

    • Navit

      Navit is an open source and free, modular, touch screen friendly, car navigation system with GPS tracking, realtime routing engine and support for various vector map formats. It features both a 2D and 3D view of map data. Navit supports a variety of operating systems and hardware platforms including Windows,Windows CE ... Read »


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    • Navizon

    • Navizon, Inc

      Navizon, Inc. is a provider of location-based services and products. Navizon was an early developer of technology that makes it possible to determine the geographic position of a mobile device using as reference the location of cell phone towers and Wi-Fi-based wireless access points instead of GPS. Navizon also develo ... Read »


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    • NavPix

    • NavPix is the proprietary name applied by Navman to its technology that combines an image with geographical data. The "NavPix" name is used for both the software and the geo-referenced image that results from that software. The NavPix technology enables users to take a JPEG image using the integrated digital came ... Read »


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    • NAVV

    • NAVV is an on-board turn-by-turn navigation application for the iPhone produced by Amsterdam company Appstores B.V in 2010. The app allows you to store maps on your iPhone for use when you are unable to connect to wifi or data. It provides GPS voice navigation using TomTom apps. ... Read »


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    • NextNav

    • NextNav, LLC

      NextNav is the developer of Metropolitan Beacon System (MBS), a wide area location and timing technology designed to provide services in areas where GPS or other satellite location signals cannot be reliably received. MBS consumes significantly less power than GPS, and includes high-precision altitude. In the United St ... Read »


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    • NMEA 0183

    • NMEA 0183 is a combined electrical and data specification for communication between marine electronics such as echo sounder, sonars, anemometer, gyrocompass, autopilot, GPS receivers and many other types of instruments. It has been defined by, and is controlled by, the National Marine Electronics Association. It replac ... Read »


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    • NMEA 2000

    • NMEA 2000, abbreviated to NMEA2k or N2K and standardised as IEC 61162-3, is a plug-and-play communications standard used for connecting marine sensors and display units within ships and boats. Communication runs at 250 kilobits-per-second and allows any sensor to talk to any display unit or other device compatible with ... Read »


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    • Notice Advisory to Navstar Users

    • A Notice Advisory to Navstar Users (NANU) is a message issued jointly by the United States Coast Guard and the GPS Operations Center at Schriever Air Force Base in Colorado. Such notices (NANUs) provide updates on the general health of individual satellites in the GPS constellation. NANUs are typically issued approxima ... Read »


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    • Odikyo

    • Odikyo, Inc.

      Odikyo is a GPS based real-time runner tracking service for family and friends. Odikyo means 'to run' in the South Indian language, Malayalam. User's operate Odikyo using a device-specific application while running. Friends and family can view the user in real-time via runner ID on the Odikyo website. The use of Odikyo ... Read »


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    • OmniSTAR

    • OmniSTAR is a satellite-based augmentation system (SBAS) service provider. OmniSTAR correction signals are proprietary, and a subscription must be bought from the OmniSTAR corporation to receive a subscription authorization. OmniSTAR uses geostationary satellites in eight regions covering most of the landmass of each i ... Read »


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    • OpenEZX

    • OpenEZX is a project, which tries to gather information about the Linux based Motorola EZX phone platform. It tries to provide a 100% free software stack for those phones, especially a way to avoid any proprietary filesystem and/or device drivers. It also aims to provide a current (2.6.x) kernel with all required hard ... Read »


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    • OpenGTS

    • OpenGTS is a web-based, open source GPS tracking services framework for by GeoTelematic Solutions, Inc. OpenGTS is implemented in Java and requires an SQL database server such as MySQL as a backend. It supports the data collection and storage of GPS tracking and telemetry data from remote devices. It is licensed unde ... Read »


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    • OziExplorer

    • Oziexplorer screenshot.gif
      Developer(s) D & L Software Pty Ltd Australia
      Stable release
      3.95.6d / February 2015 (2015-02)
      Operating system Microsoft Windows
      Type GPS navigation software
      License OziExplorer

      OziExplorer is raster navigation and mapping software for Windows. It is very popular among off-road drivers and adventure travelers as it allows to use and create custom maps for remote locations that are not fully covered by major map providers like Tele Atlas. That is why the software is also widely used on Post-Sov ... Read »


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    • Bradford Parkinson

    • Bradford Parkinson

      Bradford Parkinson (February 16, 1935) is an American engineer and inventor, and United States Air Force colonel best known as the father of the Global Positioning System (along with Roger L. Easton and Ivan A. Getting). He attended the United States Naval Academy, graduating in 1957, but decided to join the Air Force ... Read »


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    • Plate Boundary Observatory

    • The Plate Boundary Observatory (PBO) is the geodetic component of the EarthScope Facility. EarthScope is an earth science program that explores the 4-dimensional structure of the North American Continent. EarthScope (and PBO) is a 15-year project (2003-2018) funded by the National Science Foundation in conjunction with ... Read »


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    • Point of interest

    • A point of interest, or POI, is a specific point location that someone may find useful or interesting. An example is a point on the Earth representing the location of the Space Needle, or a point on Mars representing the location of the mountain, Olympus Mons. Most consumers use the term when referring to hotels, camps ... Read »


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    • Positioning system

    • A positioning system is a mechanism for determining the location of an object in space. Technologies for this task exist ranging from worldwide coverage with meter accuracy to workspace coverage with sub-millimetre accuracy. Interplanetary-radio communication system not only communicate with spacecraft, but are al ... Read »


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    • Precise Point Positioning

    • Precise Point Positioning (PPP) is a Global Navigation Satellite System (GNSS) positioning method to calculate very precise positions up to few centimeter level using a single (GNSS) receiver in a dynamic and global reference framework like International Terrestrial Reference System (ITRS). PPP methods are different fr ... Read »


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    • Precision Lightweight GPS Receiver

    • The AN/PSN-11 Precision Lightweight GPS Receiver (PLGR, colloquially "plugger") is a ruggedized, hand-held, single-frequency GPS receiver fielded by the US military. It incorporates the Precise Positioning Service - Security Module (PPS-SM) to access the encrypted P(Y)-code GPS signal. Introduced in January 1990, and ... Read »


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    • Pseudorange

    • The pseudorange (from and ) is the pseudo distance between a satellite and a navigation satellite receiver (see GNSS positioning calculation) —for instance Global Positioning System (GPS) receivers. To determine its position, a satellite navigation receiver will determine the ranges to (at least) four satellites ... Read »


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    • Radio occultation

    • Radio occultation (RO) is a remote sensing technique used for measuring the physical properties of a planetary atmosphere or ring system. Atmospheric radio occultation relies on the detection of a change in a radio signal as it passes through a planet's atmosphere, i.e. as it is occulted by the atmosphere. When el ... Read »


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    • RailRider

    • The RailRider is a Global Positioning System (GPS) tracking and monitoring device used on railroad freight cars and locomotives. In earlier days of railroading a rail rider was known as a person to ride on a railcar to make sure it arrived unscathed. The modern electronic RailRiders are deployed worldwide on railcars, ... Read »


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    • Real Time Kinematic

    • Real Time Kinematic (RTK) satellite navigation is a technique used to enhance the precision of position data derived from satellite-based positioning systems (global navigation satellite systems, GNSS) such as GPS, GLONASS, Galileo, and BeiDou. It uses measurements of the phase of the signal's carrier wave, rather than ... Read »


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    • Real-time geotagging

    • Real-time geotagging is a name given to the automatic technique of acquiring media (such as photos, audio or video), associating a specific location with the media, transferring the media to an online map and publishing the media in real time. It is thus an extension of an automatic geotagging process, requiring an in- ... Read »


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    • Receiver autonomous integrity monitoring

    • Receiver autonomous integrity monitoring (RAIM) is a technology developed to assess the integrity of global positioning system (GPS) signals in a GPS receiver system. It is of special importance in safety-critical GPS applications, such as in aviation or marine navigation. GPS does not include any internal information ... Read »


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    • Redtail Telematics Corporation

    • Redtail Telematics Corporation

      Redtail Telematics is a provider of GPS enabled fleet tracking products. The company is based in North America with headquarters in the United Kingdom. Redtail’s products use a technology solution known as VAM (Vehicle Asset Management) which includes features such as The company's technology is provided by Plext ... Read »


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    • Reference ellipsoid

    • In geodesy, a reference ellipsoid is a mathematically defined surface that approximates the geoid, the truer figure of the Earth, or other planetary body. Because of their relative simplicity, reference ellipsoids are used as a preferred surface on which geodetic network computations are performed and point coordinates ... Read »


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    • RINEX

    • Receiver Independent Exchange Format (RINEX) is a data interchange format for raw satellite navigation system data. This allows the user to post-process the received data to produce a more accurate result — usually with other data unknown to the original receiver, such as better models of the atmospheric condition ... Read »


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    • S-GPS

    • Simultaneous GPS or S-GPS is a method to enhance a mobile phone's satellite-based position reporting ability to a mobile network operator. Ordinarily, a built-in, multi- dimensional GPS device is used to determine the location of an E911 call made from CDMA phones. By using a time-multiplexed scheme called TM-GPS, the ... Read »


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    • SailTimer

    • SailTimer is a technology for sailboat navigation, which calculates optimal tacking angles, distances and times. Seafarers have had a dilemma for as long as sailboats could use lift to sail upwind. Should you head off the wind more, to get more speed (but at a longer distance)? Or should you sail upwind more, to lesse ... Read »


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    • Satmap

    • Satmap Systems Ltd.

      Satmap Systems Limited is a United Kingdom company founded on 19 October 2005 and based in Leatherhead, Surrey. Since 2007 it has produced a standalone handheld GPS satellite navigation mapping device for use by walkers, cyclists, mountain rescue, emergency services and the military. The Active 10 available since ... Read »


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    • Selective availability anti-spoofing module

    • A Selective Availability Anti-spoofing Module (SAASM) used by military Global Positioning System receivers to allow decryption of precision GPS observations, while the accuracy of civilian GPS receivers may be reduced by the United States military through Selective Availability (SA) and anti-spoofing (AS). However, on ... Read »


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    • Shadow Matching

    • Shadow matching is a new positioning method that improves positioning accuracy of global navigation satellite systems (GNSS) in urban environments. The shadow matching positioning principle was first proposed and the name 'shadow matching' was first introduced by Paul D Groves. The principle of shadow matching combines ... Read »


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    • SiReNT

    • The Singapore Satellite Positioning Reference Network or in short SiReNT, is an infrastructure set up by the Survey Services section of the Singapore Land Authority to define Singapore's official spatial reference framework and to support the gazetted cadastral system in SVY21. It is a multi-purpose high precision posi ... Read »


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    • SiRF

    • SiRF Technology

      SiRF Technology, Inc. was a pioneer in the commercial use of GPS technology for consumer applications. The company was founded in 1995 and was headquartered in San Jose, California. The company was acquired by British firm CSR plc in 2009, who were in turn subsequently acquired by American company Qualcomm in April 201 ... Read »


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    • SiRFstarIII

    • SiRFstarIII is a range of high sensitivity GPS microcontroller chips manufactured by SiRF Technology. GPS microcontroller chips interpret signals from GPS satellites and determine the position of the GPS receiver. SiRFstarIII features: ... Read »


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    • SK-42 reference system

    • The SK-42 reference system also known as the Krasovsky ellipsoid, is a coordinate system established in the Soviet Union in 1942 as Systema koordinat (Russian: Система координат 1942 года), and provides parameters which are linked to the geocentric Cartesian c ... Read »


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    • Spanner (software)

    • Spanner is a free program provided by Garmin for PCs running Windows 2000 or XP. It ‘translates’ live positional data from Garmin’s proprietary interface into NMEA 0183. Garmin’s proprietary interface data is only provided via USB whereas NMEA data is provided via serial port. Spanner overcomes this ... Read »


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    • Spartan Packet Radio Experiment

    • The Spartan Packet Radio Experiment (SPRE) was an Amateur Radio communications experiment that flew on the Space Shuttle Endeavour's STS-72 mission as part of NASA's Spartan/OAST-Flyer spacecraft in January 1996. The experiment was intended to test the tracking of satellites via amateur packet radio (Automatic Packet R ... Read »


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    • Spatial variability

    • Spatial variability occurs when a quantity that is measured at different spatial locations exhibits values that differ across the locations. Spatial variability can be assessed using spatial descriptive statistics such as the range. Actually, spatial variability and uncertainty, both are quite different concept.Let us ... Read »


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    • StarFire (navigation system)

    • StarFire is a wide-area differential GPS developed by John Deere's NavCom and precision farming groups. StarFire broadcasts additional "correction information" over satellite L-band frequencies around the world, allowing a StarFire-equipped receiver to produce position measurements accurate to well under one meter, wit ... Read »


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    • SWEPOS

    • SWEPOS is a support system for accurate measurement of Swedish geography using a network of fixed reference stations which gather GNSS data. The SWEPOS system permits mobile GPS/GLONASS receivers to receive detailed positioning data down to the centimeter level. ... Read »


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    • Telematics

    • Telematics is an interdisciplinary field that encompasses telecommunications, vehicular technologies, road transportation, road safety, electrical engineering (sensors, instrumentation, wireless communications, etc.), and computer science (multimedia, Internet, etc.). Telematics can involve any of the following: In co ... Read »


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    • Telogis

    • Telogis

      Telogis is a privately held US-based company that develops location-based software to manage mobile resources. Telogis sells software as a service (SaaS) which incorporate location information into applications for fleet owners as well as geospatial software development toolkits. Telogis was founded in 2001 by How ... Read »


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    • Time to first fix

    • Time To First Fix (TTFF) is a measure of the time required for a GPS receiver to acquire satellite signals and navigation data, and calculate a position solution (called a fix). The TTFF is commonly broken down into three more specific scenarios, as defined in the GPS equipment guide: Many receivers can use as ma ... Read »


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    • TomTom

    • TomTom N.V.

      TomTom NV is a Dutch company that produces traffic, navigation and mapping products. TomTom also makes action cameras, GPS sport watches, fleet management systems, and location-based products. As of 2015[update] TomTom's business has four business units: Consumer, Automotive, Licensing and Telematics through which it s ... Read »


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    • TraceME

    • TraceME is a tracking device created and developed by KCS, a Dutch electronics company headquartered in Dordrecht. The KCS TraceME GPRS/GPS range of modules enable you to remotely track & trace a variety of objects, e.g. cars, trucks, containers, (motor)cycles. TraceME Micro is the latest addition, targeted for pe ... Read »


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    • TrafficDito

    • TrafficDito is a free traffic monitoring website and GPS-enabled iOS application for iPhones launched in the Philippines on October 21, 2011 by the TrafficDito Team, a local startup in the country. It works by sorting through Twitter users’ public tweets and its iPhone app-generated traffic reports describing road ... Read »


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    • Transit (satellite)

    • Transit

      The Transit system, also known as NAVSAT or NNSS (for Navy Navigation Satellite System), was the first satellite navigation system to be used operationally. The system was primarily used by the U.S. Navy to provide accurate location information to its Polaris ballistic missile submarines, and it was also used as a navi ... Read »


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    • Turn-by-turn navigation

    • Turn-by-turn navigation is a feature of some GPS navigation devices where directions for a selected route are continually presented to the user in the form of spoken and visual instructions. The system keeps the user up-to-date about the best route to the destination, and is often updated according to changing factors ... Read »


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    • UNAVCO

    • UNAVCO, Inc.

      UNAVCO is a non-profit university-governed consortium that facilitates geoscience research and education using Geodesy. The UNAVCO academic and research community seeks to broaden human understanding of the changing Earth by integrating technologies, open geodetic observations, and research. UNAVCO is funded by the Nat ... Read »


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    • Undulation of the geoid

    • Undulation of the geoid is the mathematical process of determining the height in metres above the geoid (relative to the mean sea level) from the height provided by the GPS system which uses the (WGS84) ellipsoid as reference. In maps and common use the height over the mean sea level is used to indicate the height of e ... Read »


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    • Vehicle tracking system

    • A vehicle tracking system combines the use of automatic vehicle location in individual vehicles with software that collects these fleet data for a comprehensive picture of vehicle locations. Modern vehicle tracking systems commonly use GPS or GLONASS technology for locating the vehicle, but other types of automatic veh ... Read »


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    • Wayfinder

    • Wayfinder Systems AB

      Wayfinder Systems AB was a wholly owned subsidiary of Vodafone specializing in creating mobile navigation systems for a number of platforms such as Symbian 2nd and 3rd edition, UIQ, Windows Mobile and some other smartphones. An external Bluetooth GPS receiver is required for non GPS enabled phones. On March 12, 2010 it ... Read »


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    • Waypoint

    • A waypoint is term used to refer to an intermediate point or place on a route or line of travel, a stopping point or point at which course is changed, first use of the term tracing to 1880. In modern terms, it most often refers to coordinates which specify ones position on the globe at the end of each "leg" (stage) of ... Read »


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    • Wide Area Augmentation System

    • The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essentially, WAAS is intended to enable aircraft to rely on GPS for all phases of fligh ... Read »


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    • Wide Area GPS Enhancement

    • Wide Area GPS Enhancement (WAGE) is a method to increase the horizontal accuracy of the GPS encrypted P(Y) Code by adding additional range correction data to the satellite broadcast navigation message. Per a 1997 article, the navigation message for each satellite is updated once daily or as needed. This daily update o ... Read »


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    • World Geodetic System

    • The World Geodetic System (WGS) is a standard for use in cartography, geodesy, and navigation including GPS. It comprises a standard coordinate system for the Earth, a standard spheroidal reference surface (the datum or reference ellipsoid) for raw altitude data, and a gravitational equipotential surface (the geoid) th ... Read »


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    • What Else?

      • Global Positioning System

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