MC-UWB Precise Positioning System - Field Tests, Results and Effect of Multipath

Hemish K. Parikh, R. James Duckworth and William R. Michalson

Abstract:	An advanced precise position location and navigation system being developed for first responders and emergency rescuers is discussed in this paper. The paper will discuss details of the recent developments and the progress made in the design and development of a prototype wireless system which is very well suited for real-time positioning and tracking of first responders and emergency rescuers with a target of one meter accuracy in an indoor environment. The distance estimation is based on a time difference of arrival (TDOA) recovery approach and the Multicarrier- Ultrawideband (MC-UWB) signal structure being used is much easier to adapt to existing spectral assignments. The system level integration of the developed prototype receiver, transmitter and position location algorithms is described. The paper will present distance estimation results outdoors, and indoors, in the presence of multipath. Future design issues and improvements to the system to improve the position estimates will be reviewed.
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:	1507 - 1513
Cite this article:	Parikh, Hemish K., Duckworth, R. James, Michalson, William R., "MC-UWB Precise Positioning System - Field Tests, Results and Effect of Multipath," 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. 1507-1513.
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