GNSS Array-Aided Positioning and Attitude Determination: Real Data Analyses

N. Nadarajah, P.J.G. Teunissen, P.F. de Bakker

Abstract:	GNSS positioning and navigation have become ubiquitous with a wide variety of challenging applications including attitude determination and relative navigation. In this contribution, we analyse the performance of a novel integrated navigation method for array-aided relative positioning and attitude determination using real data. We consider two platforms equipped with multiple GNSS receivers/antennas. Precise GNSS positioning and attitude determination rely on successful resolution of the carrier phase integer ambiguities. The Multivariate Constrained-Least squares AMBiguity Decorrelation Adjustment (MC-LAMBDA) method is used to reliably resolve platform ambiguities making use of the knowledge of antenna geometry in the local body frame. This reliable platform processing consequently enhances the between-platform ambiguity resolution and baseline estimation. Using real data, we demonstrate that this method not only enhances the attitude determination but also improves the between-platform ambiguity resolution and the between-platform baseline estimates. Our study includes performance analyses of the array-aided positioning method in terms of number of antennas per platform, number of frequencies, and multi-GNSS vs a single system.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	2544 - 2554
Cite this article:	Nadarajah, N., Teunissen, P.J.G., de Bakker, P.F., "GNSS Array-Aided Positioning and Attitude Determination: Real Data Analyses," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 2544-2554.
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