WPI Precision Personnel Locator System: Antenna Geometry Estimation using a Robust Multilateralization Technique

B. Woodacre, D. Cyganski, R.J. Duckworth, V. Amendolare

Abstract:	This paper describes further efforts towards antenna geometry estimation in the WPI Precision Personnel Locator system, which is under development as a portable, zero-fixedinfrastructure, and spectrally compliant RF-based system for location and tracking of personnel situated in indoor environments. The system consists of transmitters worn by individuals to be tracked, and receiver hardware which collectively estimates position mounted upon response vehicles. Pursuit of any location solution requires the availability of an estimate of the receivers’ antenna positions of sufficient accuracy so as not to contribute superfluous error to personnel location estimates. By utilizing each receiving antenna temporarily as a transmitter, sufficient information is collected to derive a solution for the antenna positions, however, while these antennas are outdoors, they experience the same multipath effects as the indoor-to-outdoor radio channel and require application of a robust multilateralization technique not considered in the previous paper. This paper presents methods for antenna geometry estimation based on such a technique and will present results, from a number of experimental tests, illustrating antenna location error as well as total system error when driven by such antenna geometry solutions.
Published in:	Proceedings of the 2009 International Technical Meeting of The Institute of Navigation January 26 - 28, 2009 Disney's Paradise Pier Hotel Anaheim, CA
Pages:	822 - 828
Cite this article:	Woodacre, B., Cyganski, D., Duckworth, R.J., Amendolare, V., "WPI Precision Personnel Locator System: Antenna Geometry Estimation using a Robust Multilateralization Technique," Proceedings of the 2009 International Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2009, pp. 822-828.
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