Multipath Signal Assessment in the High Sensitivity Receivers for Vehicular Applications

Peng Xie, Mark G. Petovello, and Chaminda Basnayake

Abstract:	Generally, the GPS-only navigation system cannot provide an accuracy level that is sufficient for use in vehicular applications in all environments. Specifically, in urban canyon environments where the presence of large buildings leads to frequent shadowing of signals, several multipath peaks can potentially exist in the correlator outputs. To this end, it is worth characterizing the multipath peaks to enhance the performance of high sensitivity receivers. To this end, a peak removal process is employed to separate the multipath and noise peaks from the line of sight signals in block correlator outputs. In so doing, Doppler errors and path delay errors of multipath peaks are assessed. The effect of the block correlator (search space) size on measurement accuracy is also included.
Published in:	Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011) September 20 - 23, 2011 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	1764 - 1776
Cite this article:	Xie, Peng, Petovello, Mark G., Basnayake, Chaminda, "Multipath Signal Assessment in the High Sensitivity Receivers for Vehicular Applications," Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011), Portland, OR, September 2011, pp. 1764-1776.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In