Measurement of Errors in GPS Attitude Determining Systems

Richard D. Juqps, Leo Fan, Debra Diefes and Charles Rodgers

Abstract:	Adroit Systems has built three GPS attitude determimng systems (ADS). It is presently engaged in a fourth genera- tion design. Many of the error sources that degrade ADS performance have been identified and charac&&ed as part of this comimting research. This paper presents the error levels that Adroit is currently using for ADS analysis, and some of the test data l?om which these error levels were derived. Major attention is given to antenna produced phase erroxs, baseline conQuration, and selection of proper satellite f3eometry. Adroit’s methodology for analyzing GPS pointing accuracy is present4 F%edictions of performance for the next gen- eration ADS are made that show less than one milliradiau performance for a man portable unit. 1.0 INTRODUCTION Adroit Systems has been conducting research in GPS Atti- tude Determining Systems (ADS) for almost five years. The results of much of our experience is presented in this paper. The paper then describes the methodology used to analyze system pointing accuracies and presents ADS acxmacypredidionsthatIthinkcanbeobtaiuedinlhture systems.
Published in:	Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992) September 16 - 18, 1992 Albuquerque, NM
Pages:	793 - 799
Cite this article:	Juqps, Richard D., Fan, Leo, Diefes, Debra, Rodgers, Charles, "Measurement of Errors in GPS Attitude Determining Systems," Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992), Albuquerque, NM, September 1992, pp. 793-799.
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