Attitude Determination Improvements for a Multiplexing GPS Receiver

Alfred Tadros, HaiPing Jin and David Mleczko

Abstract:	Attitude determination using GPS signals has proven to be a viable and economical alternative to many conventional attitude determination sensors. Prior research has identified multipath as a principal source of error in GPS based attitude measurement. Research at Space Systems/ Loral has been conducted to identify and quantify the attitude determination error sources in a Ll only, 4 antenna, multiplexing, GPS receiver. The identified error sources are described along with accuracy improvement techniques which have been developed. Significant improvement in differential phase measurement accuracy is possible using these new techniques. These a$orithms are being incorporated into Loral’s GPS Tensor which is a single frequency, space qualified, position and attitude determination GPS receiver. GPS Tensorm receiver is being used on Loral’s 48 LEO satellite Globalstar constellation.
Published in:	Proceedings of the 52nd Annual Meeting of The Institute of Navigation (1996) June 19 - 21, 1996 Royal Sonesta Hotel Cambridge, MA
Pages:	773 - 777
Cite this article:	Tadros, Alfred, Jin, HaiPing, Mleczko, David, "Attitude Determination Improvements for a Multiplexing GPS Receiver," Proceedings of the 52nd Annual Meeting of The Institute of Navigation (1996), Cambridge, MA, June 1996, pp. 773-777.
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