Effects of Platform Rotation on GPS with Implications for Simulators

Avram K. Tetewsky, Frank E. Mullen

Abstract:	With the advent of GPS receivers mounted on spinning platforms such as artillery shells, GPS engineers must account for several new effects due to rotation. These include carrier phase wrap-up, spin modulation, and array filtering. Designers of GPS simulators may also want to update their products to account for these effects. In this paper, phase wrap- up and spin modulation will be discussed. For each term, we will present an intuitive explanation, summarize the main effects on both the GPS signal and receiver, and show how a single point navigation solution is affected. Supporting data from a roof-top spinning GPS system will also be presented. We conclude the paper by proposing requirements and algorithms for incorporation into GPS signal simulators.
Published in:	Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996) September 17 - 20, 1996 Kansas City, MO
Pages:	1917 - 1925
Cite this article:	Tetewsky, Avram K., Mullen, Frank E., "Effects of Platform Rotation on GPS with Implications for Simulators," Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996), Kansas City, MO, September 1996, pp. 1917-1925.
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