Integer Ambiguity Search: What is the point?

Rongsheng Ken Li

Abstract:	It is the author’s opinion that except for highly constrained problems such as GPS carrier phase interferometric attitude /heading determination, most of the extensive integer ambiguity search computations involved in the integer ambiguity resolution process are not necessary and often not reliable. This paper resents the justification for this opinion based on hypothesis testing analysis. Consequently, it is recommended in this paper that a reliable and efficient approach is to resolve the ambiguity by fixing the float estimation of the ambiguity to integers one by one as they become “fixable” as indicated the covariance. As an example, this paper also presents an ambiguity resolution Kalman Filter algorithm featuring state propagation using carrier phase triple difference and correlated multi- path noise model.
Published in:	Proceedings of the 1996 National Technical Meeting of The Institute of Navigation January 22 - 24, 1996 Loews Santa Monica Hotel Santa Monica, CA
Pages:	597 - 604
Cite this article:	Li, Rongsheng Ken, "Integer Ambiguity Search: What is the point?," Proceedings of the 1996 National Technical Meeting of The Institute of Navigation, Santa Monica, CA, January 1996, pp. 597-604.
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