Integrated GPS/TOA Navigation using a Positioning and Communication Software Defined Radio

Alison Brown, Yan Lu and Janet Nordlie

Abstract:	While GPS is the natural choice for providing navigation in an outdoors environment, it experiences significant challenges when operating in an urban environment where the GPS signals can be significantly attenuated, often completely blocked, inside buildings or in urban canyons. In this paper a networked radio navigation approach is described that augments the GPS signals with Time of Arrival (TOA) observations using a Software Defined Radio (SDR). Simulation and test results are included to demonstrate the GPS/TOA network-aided positioning solution can be derived.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	1971 - 1976
Cite this article:	Brown, Alison, Lu, Yan, Nordlie, Janet, "Integrated GPS/TOA Navigation using a Positioning and Communication Software Defined Radio," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 1971-1976.
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