Submeter Positioning With a Low-Cost Hand-Held Receiver

Lawrence Weill

Abstract:	An emerging market for low-cost, 3dimensional static positioning at the submeter accuracy level.has led to the development of a differential carrier-phase technique in which an inexpensive, handheld C/A-code reciever achieves these objectives within a relatively short observation time. Bacause the technique is doppler-based, the position fixes are inherently free of range ambiguities. Unlike either code or carrier-phase ranging systems, the position dilution of precision (PDGP) depends not only on the positions of the satellites relative to the receiver, but also on the satellite velocity vectors. Test runs over various satellite geomeuies and baselines up to 50 km have shown that 3dimensional RMS accuracies substan- tially below one meter can be readily achieved with four satellites in, at most, ten minutes of on-site observation.
Published in:	Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992) September 16 - 18, 1992 Albuquerque, NM
Pages:	647 - 653
Cite this article:	Weill, Lawrence, "Submeter Positioning With a Low-Cost Hand-Held Receiver," Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992), Albuquerque, NM, September 1992, pp. 647-653.
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