Availability of GPS compass for less satellites

Kenji Itani, Tadao Hayashi

Abstract:	As shown in [Ref-6], GPS attitude determination is not new. Several vendor have developed commercial systems. Generally, they need more than four satellites for GPS attitude determination. But, it is sometimes hard to get enough multipath-less satellites even on the sea. In case of “working boats” such as dredgers, they need precise heading information, but don't need a rolling angle or a pitching angle. They do not work when the sea is rough. Rolling and pitching angles are usually small enough to be neglected while they are working. We developed GPS compass for less satellites and evaluated it. We show this GPS compass with experimental results. The algorithm and equipment which we show here is a practical way to get heading by GPS for a dredger at sea.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	1293 - 1302
Cite this article:	Itani, Kenji, Hayashi, Tadao, "Availability of GPS compass for less satellites," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 1293-1302.
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