An Efficient Algorithm for Short Delay Time Multipath Estimation and Mitigation

M. Brenneman, Y. Morton

Abstract:	Short delay time multipath is a challenging problem for high accuracy GPS applications. This paper presents an efficient algorithm that combines a contractive map and alternating projection method to accurately compute the angles of arrival of the direct line of sight GPS and multipath signals. These angles of arrival information are then used in a pseudoinversion process to recover the direct line of sight signals. The paper uses examples and results of Monte-Carlo simulations to illustrate the effectiveness and accuracy of the estimation and mitigation algorithms for scenarios involving one and two multipath signals in the input.
Published in:	Proceedings of the 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2010) September 21 - 24, 2010 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	152 - 160
Cite this article:	Brenneman, M., Morton, Y., "An Efficient Algorithm for Short Delay Time Multipath Estimation and Mitigation," Proceedings of the 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2010), Portland, OR, September 2010, pp. 152-160.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In