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gps navigation softwareThe GPS or Global Positioning System is a global navigation system used for military and civilian applications alike.
GPS allows the military to accurately target its missile arsenal, largely composed of cruise missiles and precision-guided munitions. This was born out by the use of SOFLAM (Special Operations Forces Laser Acquisition Markers) targeting during the attacks on Tora Bora in Afghanistan. It also improves the accuracy of the US submarine launched ballistic missiles by providing precise locational information to the submarine commanders. Finally, command and control over troops is improved because commanders know precisely where their troops and the enemy are located on the battlefield. GPS receivers come in a variety of consumer formats, and today can be found in cars, watches, phones boats and planes. Major manufacturers include Trimble, Garmin and Leica, low-end, hand-held consumer units are often available at less than $100 per unit. The first experimental Block-I GPS satellite was launched in February 1978. The GPS satellites were initially manufactured by Rockwell International and now manufactured by Lockheed Martin. The US military has developed the ability to locally deny GPS (and other navigation services) to hostile forces in a specific area of crisis without affecting the rest of the world or its own military systems. Such Navigation Warfare uses techniques such as local jamming to replace the blunt, world-wide degradation of civilian GPS service that SA represented. Commercial civilian GPS receivers are purposefully less accurate than they might be. In specific, they are required to have limits on the velocities and altitudes at which they will report coordinates in order to prevent them from being used to create improvised missiles. One of biggest problems for GPS accuracy is that changing atmospheric conditions change the speed of the GPS signals unpredictably as they pass through the ionosphere. The effect is minimized when the satellite is directly overhead and becomes greater toward the horizon, as the satellite signals must travel through the greater "thickness" of the ionosphere as the angle increases. Once the receiver's rough location is known, an internal mathematical model can be used to estimate and correct for the error. Atomic clocks on the GPS satellites are set to "GPS time", which is the number of seconds since 00:00:00 UTC, January 6, 1980. UTC is short for Coordinated Universal Time. Today, GPS time is 14 seconds ahead of UTC, because it does not follow leap seconds. That's why new GPS units initially show the incorrect time after achieving a GPS lock for the first time. However, this is usually corrected on the display within 15 minutes once the UTC offset message is received for the first time. GPS signals can also be affected by multipath reflections of the radio signals off the ground and/or surrounding structures (buildings, canyon walls, etc). For long delay multipath signals, the receiver itself can filter the signals out. A variety of receiver techniques, most notably Narrow Correlator spacing, have been developed to mitigate multipath errors. In early years, the US military made the civilian application purposefully less powerful than it could. But since August 2000, the GPS civilian application provides the accuracy of GPS signals to within 2 meters (6 ft). Fact is, GPS accuracy can be improved further, to about 1 cm (half an inch) over short distances, using techniques such as Differential GPS (DGPS). In late 2005, the US government introduced the first in a series of new generation GPS staellites offering new capabilities. Chief among these is a second civilian GPS signal called L2C for greater accuracy and reliability.
1. GPS navigation software - Wikipedia, the free encyclopedia
GPS navigation software usually falls into one of the following two categories: ... Software can be used on a laptop computer with an attached GPS receiver. ... 2. Fugawi Windows-based program for navigation with GPS receivers; permits the user to scan and calibrate maps. ... Feature-packed GPS navigation and mapping software locates your exact ... 3. PocketPC GPS and Navigation All you wanted to know about wince and pocketpc GPS usage and navigation. ... A separate software product is also available that will work with any gps using NMEA. ... 4. Free GPS Software - An Up-to-Date List There are many types of free GPS software on the Internet. ... NaviComputer is GPS mapping and offroad navigation/tracking software. Navideo Basic is a multi purpose ... 5. GPS Software Maps GPS Navigation Software Garmin Magellan ... GPS Software Maps GPS Navigation Software Garmin Road Map Trail World Map Magellan TomTom Humminbird Water Maps Navionic Trip Waypoints Numaps Lifetime at GPSCenter.com 6. TomTom GPS solutions for your Car, Motorcycle, PDA and mobile phone - The smart choice in personal navigation. 7. Garmin Designs, manufactures, and markets GPS navigation and communications equipment. 8. GPS Software : GPS + Navigation : Electronics : Target Shop for GPS Software GPS + Navigation Electronics Products and Promotions at Target. Find GPS Software GPS + Navigation Electronics Products and ... 9. Microsoft Streets & Trips Change. All Microsoft Sites. Manage Your Profile © 2010 Microsoft ... All rights reserved. Contact Us |Terms of Use |Trademarks |Privacy Statement ... 10. SatGuide: The best GPS Navigation Software and System ... We have the best personal navigation devices and sat nav softwares at affordable prices. We also provide the best gps navigation software for your gps system in india. 11. Mobium GPS Offering GPS navigation system software for Windows Mobile devices, with turn-by-turn voice driving directions. 12. SeaClear GPS Navigation Software Free GPS Nautical Navigation Software for Windows ... Always follow local regulations, have original charts and use appropriate navigation equipment when using SeaClear. ... 13. GPS Software for Mapping and Navigation GPS software for mapping and navigation makes GPS navigation more intuitive 14. Magellan Specializing in satellite navigation and communication products. 15. NAVTEQ Maps Buy the latest map update for your GPS navigation Official NAVTEQ Online store for the latest GPS navigation maps. Original maps available for the most popular vehicle brands and portable GPS navigation devices. 16. Gps Navigation Software-Gps Navigation Software Manufacturers ... Choose quality Gps Navigation Software Manufacturers, Suppliers, Exporters at alibaba.com. ... Home > Showroom > Search : gps navigation software 1,933 Products ... 17. GPS reviews, handheld GPS systems, mapping software and more ... ... and ratings, video reviews, user opinions, most popular portable navigation systems, GPS buying guides, prices, and comparisons from CNET Reviews. ... 18. Cheap OEM Downloadable Software GPS Navigation Software, Maps. In our price list, the 'buy' link will add program to the shopping cart, additional information about product you ... 19. GPS & Navigation Windows Mobile 6 Software | Pocket PC ... Download free GPS & Navigation software for your Windows Mobile/Pocket PC device. ... Category: GPS & Navigation. Description: GPS2Day is a GPS app that gives you almost all ... 20. GPSPilot GPS Pilot mapping software for Palm OS and Windows Mobile Pocket PC platforms. Convert PDAs and smartphones to worldwide navigation assistants. Full screen High ... 21. Free iPhone GPS Navigation Software Downloads | Cell Phone GPS Are you using iPhone for navigational purpose? Here is a list of 15 free GPS software for your Apple iPhone with download links and description. 22. Truck Navigation System,GPS Auto Navigation Unit,Marine GPS ... Know the real-time status of your vehicles & drivers! Live tracking from PC/Mobile. High Quality GPS monitoring devices & systems at Low Price. 23. Fugawi Global Navigator GPS Navigation Software Fugawi Global Navigator is the ideal PC software tool for route planning, GPS programming, and real-time GPS navigation on land, sea and in the air. ... 24. Global Positioning System Software Applications Garmin's Mobile PC software converts a laptop or tablet PC into a GPS navigation device if combined with ... Trucking specific GPS navigation is under consideration by ... 25. GpsDrive - a free car (bike, ship, plane) navigation system GpsDrive - a free navigation system ... Speech output is supported via the "speech dispatcher" software. All GPS receivers supported by gpsd should be usable. ... 26. Free Gps Navigation Software read reviews and buy online ... Find Free Gps Navigation Software for the best prices, read reviews and buy online. Free shipping & Orders 27. Navigation with Palm OS All you wanted to know about palm OS navigation with emphasis on gps ... There is also a listing of non-gps aware navigation software products as well. ... 28. Pharos Science & Applications Pharos is the leading provider of mobile navigation and GPS (Global Positioning System) based services which enhance personal convenience for consumers and increase ... 29. Free GPS Software | Free GPS Maps | Cell Phone GPS | GPS ... Comprehensive database of Free GPS software and Maps, free gps map software, free Garmin maps, free gps downloads and providing latest information on new gps units. 30. Nav4All - Free gps navigation for your mobile phone! Nav4All - Free GPS navigation for your mobile phone! 31. Urban Horizon: GPS navigation software for smartphones 3D GPS navigation software for smartphones and PocketPCs. Urban Horizon allows GPS maps to be stored on your smartphone or accessed form the server. ... 32. Intrinsyc " Destinator End users want simple, clear, fast navigation to ensure destinations are reached safely and quickly. Device developers want a GPS software partner ... 33. Voice directions on your GPS phone: TeleNav Beats other GPS systems because it's right on your phone. Turn by turn directions, onscreen and by voice. TeleNav GPS Navigator - try it free for 30 days! 34. Maptech Marine navigation software and NOAA nautical charts, land navigation software with GPS interface, USGS electronic topographic maps, and aeronautical sectionals. 35. navigation software gps - navigation software gps products ... navigation software gps product listings on Alibaba.com - Choose quality navigation software gps products from large database of navigation software ... 36. GPS & Navigation Software, Car Video & Navigation at Auto ... GPS & Navigation Software, Car Video & Navigation. Auto electronics store one stop shop for discount car and truck electronics, including car audio & video, car ... 37. GPS & Navigation Software, Car Video, Car Electronics at ... GPS & Navigation Software, Car Video, Car Electronics. Shop for consumer electronics like ipod, mp3 player and accessories, and home theater systems. 38. Amazon.com: GPS & Navigation: Vehicle GPS, Handheld GPS ... Top brands at low prices in GPS--Garmin, TomTom, Magellan, Mio, and more. 39. Magellan GPS-Maps and Software Maps & Software. Vehicle Navigation Maps. Enjoy worry-free driving with turn-by-turn ... Looking for maps for older Magellan GPS vehicle navigation products? ... } ?>
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