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Mathematical Problems in Engineering
Volume 2009, Article ID 106870, 20 pages
Research Article

GPS/Galileo Multipath Detection and Mitigation Using Closed-Form Solutions

1LMSE Laboratory, Electronics Department, The University Center of Bordj Bou Arréridj, Elanasser - Bordj Bou Arréridj 34265, Algeria
2LIS Laboratory, Electronics Department, University of M'sila, M'sila 28000, Algeria

Received 11 March 2009; Accepted 3 September 2009

Academic Editor: Francesco Pellicano

Copyright © 2009 Khaled Rouabah and Djamel Chikouche. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We propose an efficient method for the detection of Line of Sight (LOS) and Multipath (MP) signals in global navigation satellite systems (GNSSs) which is based on the use of virtual MP mitigation (VMM) technique. By using the proposed method, the MP signals' delay and coefficient amplitudes can be efficiently estimated. According to the computer simulation results, it is obvious that our proposed method is a solution for obtaining high performance in the estimation and mitigation of MP signals and thus it results in a high accuracy in GNSS positioning.