Multipath Characterization using Digital Phased Arrays

Alison Brown, Neil Gerein and Lee Savage

Abstract:	In this paper, a technique developed to spatially characterize the multipath environment using NAVSYS’ 16-element GPS phased array, the High-gain Advanced GPS Receiver (HAGR), is described. The algorithms used to process the multi-element digital phased array data and characterize the multipath environment are presented with simulation results to demonstrate the performance of the multipath characterization algorithm in a simulated environment. Using the Digital Storage Receiver (DSR), field test data was recorded from each of 16 antenna elements for subsequent processing and analysis. The test results from analyzing the multipath spatial characteristics from this data are also included. In this paper, we describe a method of using the multi- element digital phased array data to characterize the multipath environment. Results using simulated data are presented to demonstrate the performance of the multipath characterization algorithm. Test results are also presented using data recorded from a 16-element digital phased array.
Published in:	Proceedings of the 57th Annual Meeting of The Institute of Navigation (2001) June 11 - 13, 2001 Albuquerque, NM
Pages:	469 - 476
Cite this article:	Brown, Alison, Gerein, Neil, Savage, Lee, "Multipath Characterization using Digital Phased Arrays," Proceedings of the 57th Annual Meeting of The Institute of Navigation (2001), Albuquerque, NM, June 2001, pp. 469-476.
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