A Robust Filter Configuration for DGPS Users

Hsing-Tung Chou

Abstract:	This paper describes the implementation and perfor- mance of a robust filter configuration for Differential GPS users. The filter is set up to adaptively determine an error correction model while pseudo range corrections are being received from a DGPS reference station. In case the reference data link is lost, the model is used to predict the error corrections ahead. Hence, improved po- sition accuracy over standard GPS can be maintained for a certain period of time after the loss of the correction signal from the reference station. Preliminary results of the filter implementation using actual GPS data are presented which demonstrate the efficacy of the config- uration.
Published in:	Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990) September 19 - 21, 1990 The Broadmoor Hotel Colorado Spring, CO
Pages:	607 - 613
Cite this article:	Chou, Hsing-Tung, "A Robust Filter Configuration for DGPS Users," Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990), Colorado Spring, CO, September 1990, pp. 607-613.
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