Investigations on Carrier Phase Corrections for High-Precision DGPS Navigation

Eduarda Taveira-Blomenhofer and Gunter W. Hein

Abstract:	High-precision differential DGPS navigation in the submeter down to the centimeter level requires the use of carrier phase data (besides pseudorange data). In order to avoid the transmission of raw data from the reference station to the mobile site, the method of carrier phase corrections - analogously to pseudorange corrections - was proposed by Ron Hatch. The RTCM carrier phase working group has recently also developed a standardized format. In principle, carrier phase corrections have the following advantages: They provide navigation in the centimeter range, the telemetry load is smaller than using raw measurements, the time sensitivity of the transmission link is not so critical and the computational load of the moving user is reduced. Since RTCM SC104 Version 2.1 describes only verbally the new approach, main objective of the paper is the outline of the detailed mathematical model.
Published in:	Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993) September 22 - 24, 1993 Salt Palace Convention Center Salt Lake City, UT
Pages:	1461 - 1468
Cite this article:	Taveira-Blomenhofer, Eduarda, Hein, Gunter W., "Investigations on Carrier Phase Corrections for High-Precision DGPS Navigation," Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993), Salt Lake City, UT, September 1993, pp. 1461-1468.
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