Bazsites.com Differential Correction
Directory Topics
On the Web
- KSU Agricultural Research Center-Hays, Precision Ag. - The Agricultural Research Center¯Hays conducted a comparison of three DGPS correction sources (Coast Guard Beacon, FAA WAAS, and OmniSTAR) in both static and dynamic modes. Photos and results are published in a K-State Special Publication.
- OmniSTAR - A commercial vendor that provides wide-area differential GPS service, using satellite broadcast techniques. Site includes, pricing, service and contact information.
- U.S. Coast Guard Navigation Center - This site is maintained for the purpose of disseminating navigational status information for the GPS, DGPS, and LORAN radio navigation systems. Site includes, coverage plot map, DGPS status, discusses nationwide expansion, outages, and general information relevant to precision agriculture.
- New Century Software, Inc. - Provides an online facility to automatically differentially correct Trimble SSF files and convert GPS data into usable GIS data.
Wikipedia Articles
- 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 GPS signal, augmented with a local area correction message, and transmitted to the user via secure means. The onboard receiver compares the current GPS-derived position with the local correction signal, deriving a highly accurate three-dimensional position capable of being used for all-weather ...
- GPS·C - GPS·C, short for GPS Correction, is a set of Differential GPS data for most of Canada maintained by the Canadian Active Control System, part of Natural Resources Canada. When used with an appropriate receiver, GPS·C improves real-time accuracy to about 1-2 meters, from a nominal 15 m accuracy.
- StarFire (navigation system) - StarFire is a wide-area differential GPS system 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 metre, with typical accuracy over a 24-hour being under 4.
- 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 send data to a central location at the airport.