GPS·C

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GPS·C, short for GPS Correction, is a Differential GPS data source 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.

Real-time data is collected at fourteen permanent ground stations spread across Canada, and forwarded to the central station, "NRC1", in Ottawa for processing.

Contents 1 CDGPS 2 External links 3 See also 4 References

[edit] CDGPS

GPS·C information is currently broadcast Canada-wide on MSAT by the CDGPS, short for Canada-Wide DGPS Correction Service. CDGPS requires a separate MSAT receiver, which outputs correction information in the RTCM format for input into any suitably equipped GPS receiver. The need for a separate receiver makes it less cost-effective than solutions like WAAS or StarFire, which receive their correction information using the same antenna and receiver.

CDGPS Reference Stations^[1]

Station name	Location	Operational Date	Coordinates
ALBH	Canadian Forces Base, Esquimalt, British Columbia (near Victoria, British Columbia)	May 1992	48°23′23.2″N, 123°29′14.8″W
ALGO	Algonquin Space Complex, Algonquin Provincial Park, Ontario	January 1991	45°57′20.8″N, 78°4′16.9″W
CHUR	Geological Survey of Canada regional seismic station, Churchill, Manitoba	April 1993	58°45′32.6″N, 94°5′19.4″W
DRAO	Dominion Radio Astrophysical Observatory, Penticton, British Columbia	February 1991	49°19′21.4″N, 119°37′27.9″W
EUR2	New Environment Canada Weather Station building, Eureka, Nunavut	October 9, 2005	79°59′20.2″N, 85°56′15.2″W
FRDN	Hugh John Fleming Forestry Complex, near the University of New Brunswick in Fredericton, New Brunswick	February 2003	45°56′0.6″N, 66°39′35.6″W
HLFX	Bedford Institute of Oceanography, Halifax, Nova Scotia	December 19, 2001	44°41′0.7″N, 63°36′40.6″W
NRC1	Institute for National Measurement Standards, National Research Centre, Ottawa, Ontario	April 1995	45°27′15.0″N, 75°37′25.8″W
PRDS	Dominion Observatory in Priddis, Alberta (near Calgary, Alberta)	January 7, 1997	50°52′16.8″N, 114°17′36.5″W
SCH2	Transport Canada radio telecommunication facility, Schefferville, Quebec	June 29, 1997	54°49′55.5″N, 66°49′57.4″W
STJO	Geological Survey of Canada (NRCan) geomagnetic observing station, St. John's, Newfoundland	May 1992	47°35′42.8″N, 52°40′39.9″W
WHIT	Whitehorse, Yukon	June 1996	60°45′01.8″N, 135°13′19.5″W
WINN	NavCanada Winnipeg Area Control Centre building, Winnipeg, Manitoba	January 9, 1997	49°54′02.1″N, 97°15′34.1″W
YELL	Yellowknife, Northwest Territories	January 1991	62°28′51.2″N, 114°28′50.4″W

[edit] External links

• CDGPS
• CDGPS (Canada-Wide DGPS Correction Service)
• GPS·C Distribution Using NTRIP — PDF format

[edit] See also

v • d • e Satellite navigation systems Historical Transit (USA) Operational GLONASS (USSR/Russia) · GPS (USA) · Beidou (China) Developmental COMPASS (China) · Galileo (Europe) · IRNSS (India) · QZSS (Japan) GNSS augmentation systems EGNOS · GAGAN · GPS·C · LAAS · MSAS · WAAS · StarFire Related topics GNSS · GNSS reflectometry · Kalman filter

[edit] References

1. ^ Active Control Point Stations. Retrieved on 2006-11-27.