PERFORMANCE OF THE LAMBDA METHOD FOR FAST GPS AMBIGUITY RESOLUTION

P. J. Teunissen, P. J. De Jonge, C. C. J. M. Tiberius

Peer Reviewed

Abstract:	This paper an of Least-squares AMBiguity Decorrelation (LAMBDA) method for of integer method performance is discussed, together with theoretical on which is based. The is based the integer principle requires no application-dependent restrictions or assumptions. The actual integer estimation is preceded by a decorrelation step in order to make it more efficient. Especially for short time spans, a large gain in efficiency is obtained. The decorrelation of the ambiguities enables one to refrain from any approximation as far as the shape of the search space is concerned; i.e., the search is performed within the ellipsoidal space induced by the covariance matrix of the float ambiguities. The decorrelated ambiguities also make it possible to scale the search space such that, to a large degree of accuracy, it contains only the k best vectors of integer ambiguities.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 44, Number 3
Pages:	373 - 400
Cite this article:	Export Citation https://doi.org/10.1002/j.2161-4296.1997.tb02355.x
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