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2. Differential GPS - Wikipedia

   en.wikipedia.org/wiki/Differential_GPS

   DGPS Reference Station (choke ring antenna)A reference station calculates differential corrections for its own location and time. Users may be up to 200 nautical miles (370 km) from the station, however, and some of the compensated errors vary with space: specifically, satellite ephemeris errors and those introduced by ionospheric and tropospheric distortions.

3. GNSS augmentation - Wikipedia

   en.wikipedia.org/wiki/GNSS_augmentation

   The commercial Starfix DGPS System and OmniSTAR system, operated by Fugro. The commercial Atlas GNSS Global L-Band Correction Service system, operated by Hemisphere GNSS . The GPS·C , short for GPS Correction, was a differential GPS data source for most of Canada, maintained by the Canadian Active Control System, part of Natural Resources ...

4. GNSS applications - Wikipedia

   en.wikipedia.org/wiki/GNSS_applications

   A GPS receiver in civilian automobile use. Air navigation systems usually have a moving map display and are often connected to the autopilot for en-route navigation. Cockpit-mounted GNSS receivers and glass cockpits are appearing in general aviation aircraft of all sizes, using technologies such as SBAS or DGPS to increase accuracy.

5. County equipment headed to auction - AOL

   www.aol.com/county-equipment-headed-auction...

   The next statewide county surplus equipment auction dates are March 8-9, starting 9 a.m. each day. ... in need of repair and unused pieces of equipment and road construction supplies to auction in ...

6. StarFire (navigation system) - Wikipedia

   en.wikipedia.org/wiki/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, with typical accuracy over a 24-hour period being under 4.5 cm. StarFire is ...

7. Trent-class lifeboat - Wikipedia

   en.wikipedia.org/wiki/Trent-class_lifeboat

   For navigation the crew utilize an array of digital select systems including DGPS equipment, and an electronic Laserplot chart display and information system which allows complete automated management via the vessel's on-board processors (autohelm), although comparatively infrequent in practice. [citation needed]

8. Atlantic Undersea Test and Evaluation Center - Wikipedia

   en.wikipedia.org/wiki/Atlantic_Undersea_Test_and...

   In-air tracking is provided by radars and various other in-air tracking systems such as LATR, the Hyperbolic In-Air Tracking System (HITS), and Differential GPS (DGPS). These in-air systems cover the AUTEC Weapons Range up to a distance of 500 nautical miles (930 km) from Site 1 and a height of 70,000 feet (21,000 m).

9. Local-area augmentation system - Wikipedia

   en.wikipedia.org/wiki/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.