Global Positioning System
The Global Positioning System ( GPS ), originally Navstar GPS , [1] is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force . [2] It is a global navigation satellite system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [3] Obstacles such as mountains and buildings block the relatively weak GPS signals.
Page Revisions
| Year | Metadata | Sections | Top Words | First Paragraph |
| 2018 |
551128 characters 50 sections 134 paragraphs 32 images 1115 internal links 232 external links |
8. Accuracy enhancement and surveying |
gps 0.577 satellites 0.408 satellite 0.372 receiver 0.194 lightsquared 0.178 navigation 0.121 receivers 0.109 fcc 0.100 orbit 0.089 ground 0.086 civilian 0.083 l1 0.083 terrestrial 0.078 utc 0.076 clock 0.074 |
The Global Positioning System ( GPS ), originally Navstar GPS , [1] is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force . [2] It is a global navigation satellite system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [3] Obstacles such as mountains and buildings block the relatively weak GPS signals. |
| 2017 |
518585 characters 49 sections 135 paragraphs 30 images 1036 internal links 219 external links |
8. Accuracy enhancement and surveying |
gps 0.583 satellites 0.406 satellite 0.360 receiver 0.184 lightsquared 0.182 navigation 0.121 receivers 0.105 orbit 0.104 fcc 0.103 civilian 0.091 ground 0.091 l1 0.085 terrestrial 0.080 utc 0.078 clocks 0.075 |
The Global Positioning System ( GPS ), originally Navstar GPS , [1] [2] is a space-based radionavigation system owned by the United States government and operated by the United States Air Force . It is a global navigation satellite system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [3] |
| 2016 |
507227 characters 49 sections 132 paragraphs 31 images 1015 internal links 197 external links |
8. Accuracy enhancement and surveying |
gps 0.584 satellites 0.402 satellite 0.364 lightsquared 0.183 receiver 0.182 navigation 0.124 receivers 0.105 orbit 0.104 fcc 0.103 ground 0.094 l1 0.085 clocks 0.084 terrestrial 0.080 civilian 0.078 utc 0.078 |
The Global Positioning System ( GPS ), also known as Navstar GPS [1] [2] [3] or simply Navstar , [4] is a global navigation satellite system (GNSS) that provides geolocation and time information to a GPS receiver in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [5] The GPS system operates independently of any telephonic or internet reception, though these technologies can enhance the usefulness of the GPS positioning information. The GPS system provides critical positioning capabilities to military, civil, and commercial users around the world. The United States government created the system, maintains it, and makes it freely accessible to anyone with a GPS receiver. However, the US government can selectively deny access to the system, as happened to the Indian military in 1999 during the Kargil War . [6] |
| 2015 |
491672 characters 49 sections 124 paragraphs 30 images 989 internal links 191 external links |
8. Accuracy enhancement and surveying |
gps 0.566 satellites 0.400 satellite 0.374 lightsquared 0.190 receiver 0.187 navigation 0.125 receivers 0.109 orbit 0.108 fcc 0.107 ground 0.098 l1 0.088 terrestrial 0.083 civilian 0.081 utc 0.081 clocks 0.073 |
The Global Positioning System ( GPS ) is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [1] The system provides critical capabilities to military, civil, and commercial users around the world. The United States government created the system, maintains it, and makes it freely accessible to anyone with a GPS receiver . |
| 2014 |
481648 characters 43 sections 120 paragraphs 27 images 974 internal links 164 external links |
8. Accuracy enhancement and surveying |
gps 0.574 satellites 0.405 satellite 0.355 receiver 0.189 lightsquared 0.182 navigation 0.125 orbit 0.108 receivers 0.102 fcc 0.102 ground 0.097 displaystyle 0.091 terrestrial 0.089 civilian 0.088 l1 0.088 utc 0.081 |
The Global Positioning System ( GPS ) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [1] The system provides critical capabilities to military, civil and commercial users around the world. It is maintained by the United States government and is freely accessible to anyone with a GPS receiver . |
| 2013 |
468095 characters 37 sections 108 paragraphs 26 images 966 internal links 159 external links |
8. Accuracy enhancement and surveying |
gps 0.600 satellites 0.356 satellite 0.345 lightsquared 0.199 receiver 0.148 navigation 0.133 orbit 0.118 fcc 0.111 receivers 0.103 ground 0.102 civilian 0.096 l1 0.096 displaystyle 0.094 terrestrial 0.091 utc 0.088 |
The Global Positioning System ( GPS ) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. [1] The system provides critical capabilities to military, civil and commercial users around the world. It is maintained by the United States government and is freely accessible to anyone with a GPS receiver . |
| 2012 |
448444 characters 39 sections 107 paragraphs 26 images 948 internal links 143 external links |
8. Accuracy enhancement and surveying |
gps 0.591 satellites 0.375 satellite 0.328 lightsquared 0.198 receiver 0.158 navigation 0.127 orbit 0.122 displaystyle 0.108 receivers 0.102 civilian 0.099 l1 0.099 fcc 0.098 utc 0.091 ground 0.091 t_ 0.084 |
The Global Positioning System ( GPS ) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. The system provides critical capabilities to military, civil and commercial users around the world. It is maintained by the United States government and is freely accessible to anyone with a GPS receiver . |
| 2011 |
437735 characters 38 sections 115 paragraphs 28 images 825 internal links 136 external links |
8. Accuracy enhancement and surveying |
gps 0.588 satellites 0.361 satellite 0.336 receiver 0.188 lightsquared 0.163 displaystyle 0.159 t_ 0.120 navigation 0.111 scriptstyle 0.106 orbit 0.106 receivers 0.099 l1 0.092 sphere 0.087 civilian 0.085 _ 0.081 |
The Global Positioning System ( GPS ) is a space-based satellite navigation system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites. It is maintained by the United States government and is freely accessible by anyone with a GPS receiver . The system imposes some technical limitations [ clarification needed ] which are only removed for authorized users. |
| 2010 |
393056 characters 33 sections 91 paragraphs 29 images 1004 internal links 92 external links |
8. Methods of solution of navigation equations |
gps 0.482 satellites 0.383 satellite 0.368 receiver 0.206 displaystyle 0.196 sphere 0.162 navigation 0.145 intersect 0.126 scriptstyle 0.117 intersection 0.109 orbit 0.108 circle 0.103 civilian 0.099 spheres 0.099 t_ 0.099 |
The Global Positioning System ( GPS ) is a space-based global navigation satellite system (GNSS) that provides reliable location and time information in all weather and at all times and anywhere on or near the Earth when and where there is an unobstructed line of sight to four or more GPS satellites. It is maintained by the United States government and is freely accessible by anyone with a GPS receiver. |
| 2009 |
699591 characters 46 sections 174 paragraphs 32 images 1058 internal links 127 external links |
gps 0.524 satellite 0.356 displaystyle 0.316 receiver 0.260 satellites 0.259 receivers 0.125 prn 0.122 civilian 0.111 navigation 0.100 ionospheric 0.100 position 0.099 ephemeris 0.094 sphere 0.091 sa 0.089 subframe 0.083 |
The Global Positioning System ( GPS ) is a U.S. space-based global navigation satellite system . It provides reliable positioning, navigation, and timing services to worldwide users on a continuous basis in all weather, day and night, anywhere on or near the Earth. |
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| 2008 |
536120 characters 46 sections 139 paragraphs 28 images 589 internal links 129 external links |
3. Possible Sources of Interference |
gps 0.571 satellite 0.326 satellites 0.268 displaystyle 0.266 receiver 0.240 civilian 0.138 prn 0.125 receivers 0.118 navigation 0.104 sphere 0.103 ephemeris 0.100 intersect 0.094 ionospheric 0.094 subframe 0.094 almanac 0.088 |
The Global Positioning System (GPS) is a Global Navigation Satellite System (GNSS) developed by the United States Department of Defense . It is the only fully functional GNSS in the world. It uses a constellation of between 24 and 32 Medium Earth Orbit satellites that transmit precise microwave signals, which enable GPS receivers to determine their current location , the time, and their velocity. Its official name is NAVSTAR GPS . Although NAVSTAR is not an acronym, [1] a few backronyms have been created for it. [2] The GPS satellite constellation is managed by the United States Air Force 50th Space Wing . GPS is often used by civilians as a navigation system. |
| 2007 |
169427 characters 35 sections 88 paragraphs 15 images 493 internal links 80 external links |
1. Simplified method of operation |
gps 0.593 satellites 0.350 satellite 0.328 civilian 0.180 receivers 0.168 receiver 0.159 ionospheric 0.142 ephemeris 0.133 utc 0.123 navigation 0.114 almanac 0.114 clocks 0.109 sa 0.095 accuracy 0.092 l1 0.085 |
The Global Positioning System ( GPS ) is the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 Medium Earth Orbit satellites that transmit precise microwave signals, the system enables a GPS receiver to determine its location , speed, direction, and time. Other similar systems are the Russian GLONASS (incomplete as of 2007) and the upcoming European Galileo positioning system . |
| 2006 |
113638 characters 28 sections 67 paragraphs 19 images 288 internal links 49 external links |
gps 0.580 satellites 0.379 satellite 0.321 civilian 0.218 receivers 0.165 navigation 0.142 utc 0.128 receiver 0.124 l1 0.115 signal 0.106 clocks 0.101 accuracy 0.101 sa 0.090 ionospheric 0.090 l2 0.084 |
The Global Positioning System ( GPS ), is the only fully-functional satellite navigation system . More than two dozen GPS satellites orbit the Earth, transmitting radio signals which allow GPS receivers to determine their location , speed and direction. |
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| 2005 |
70615 characters 27 sections 41 paragraphs 7 images 140 internal links 71 external links |
2. Sources of GPS measurement errors 3. Techniques to improve GPS accuracy 8. GPS for private and commercial use |
gps 0.585 satellites 0.452 satellite 0.268 receiver 0.163 civilian 0.152 receivers 0.143 navigation 0.123 ionosphere 0.114 signals 0.107 clocks 0.095 sa 0.095 multipath 0.095 military 0.085 hyperboloids 0.076 missiles 0.076 |
The Global Positioning System , usually called GPS (the US military refers to it as NAVSTAR GPS - Navigation Signal Timing and Ranging Global Positioning System ), is the only operational satellite navigation system . For a list of other proposed and partially developed systems, including Russia's RONASS and Europe's Galileo, see satellite navigation system . |
| 2004 |
38782 characters 13 sections 27 paragraphs 3 images 100 internal links 19 external links |
satellites 0.596 gps 0.387 satellite 0.266 receiver 0.195 ionosphere 0.155 clocks 0.148 receivers 0.139 signals 0.118 civilian 0.104 hyperboloids 0.104 multipath 0.104 spheres 0.104 ground 0.090 clock 0.090 l2 0.085 |
The Global Positioning System , usually called GPS (the US military refers to it as NAVSTAR ), is a satellite navigation system used for determining one's precise location and providing a highly accurate time reference almost anywhere on Earth or in Earth orbit . It uses an intermediate circular orbit (ICO) satellite constellation of at least 24 satellites. |
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| 2003 |
18732 characters 7 sections 19 paragraphs 0 images 64 internal links 8 external links |
satellites 0.510 satellite 0.319 gps 0.309 receiver 0.208 spheres 0.207 receivers 0.178 clocks 0.148 positioning 0.133 civilian 0.124 ionosphere 0.124 l1 0.124 missiles 0.124 munitions 0.124 clock 0.107 l2 0.102 |
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| 2002 |
11960 characters 4 sections 11 paragraphs 0 images 29 internal links 5 external links |
satellites 0.562 satellite 0.271 receiver 0.245 gps 0.236 precise 0.192 determination 0.173 civilian 0.158 l1 0.158 spheres 0.158 l2 0.130 broadcast 0.122 receivers 0.113 military 0.107 intersect 0.105 positioning 0.101 |
The Global Positioning System , usually called GPS , and originally named NAVSTAR , is an intermediate circular orbit (ICO) satellite navigation system used for determining one's precise location almost anywhere on Earth . A GPS unit receives time signal transmissions from multiple satellites, and calculates its position by triangulating this data. The GPS was designed by and is controlled by the United States Department of Defense and can be used by anybody for free. The cost of maintaining the system is approximately $400 million per year. |
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| 2001 |
5023 characters 0 sections 20 paragraphs 0 images 17 internal links 0 external links |
satellites 0.715 gps 0.333 satellite 0.172 receiver 0.168 precise 0.163 elevation 0.144 glonass 0.134 latitude 0.134 longitude 0.134 positioning 0.129 constellation 0.110 broadcast 0.093 compute 0.087 orbital 0.086 unambiguously 0.067 |
The Global Positioning System , usually called GPS , and originally named NAVSTAR, is a satellite navigation system used for determining one's precise location almost anywhere on earth . A GPS unit receives time signal transmissions from multiple satellites, and calculates its position by triangulating this data. |