A New Multipath Mitigation Method for GNSS Receivers Based on an Antenna Array. (31st May 2012)

• Record Type: Journal Article
• Authors: Rougerie, Sébastien; Carrié, Guillaume; Vincent, François; Ries, Lionel; Monnerat, Michel
• Other Names: Closas Pau Academic Editor.
• Is Part Of: International journal of navigation and observation. Volume 2012(2012)
• Publication Date: 2012-05-31
• Subjects: Navigation -- Periodicals; Remote sensing -- Periodicals; Geographic information systems -- Periodicals; Global Positioning System -- Periodicals; Earth sciences -- Periodicals; Environmental monitoring -- Periodicals; Navigation; Télédétection; Systèmes d'information géographique; GPS; Sciences de la terre; Environnement -- Surveillance; Earth sciences; Environmental monitoring; Geographic information systems; Global Positioning System; Navigation; Remote sensing; Periodicals; Electronic journals; 629.045
• DOI: 10.1155/2012/804732
• Languages: English
• ISSNs: 1687-5990

Abstract

Abstract : The well-known Space-Alternating Generalized Expectation Maximisation (SAGE) algorithm has been recently considered for multipath mitigation in Global Navigation Satellite System (GNSS) receivers. However, the implementation of SAGE in a GNSS receiver is a challenging issue due to the numerous number or parameters to be estimated and the important size of the data to be processed. A new implementation of the SAGE algorithm is proposed in this paper in order to reach the same efficiency with a reduced complexity. This paper focuses on the trade-off between complexity and performance thanks to the Cramer Rao bound derivation. Moreover, this paper shows how the proposed algorithm can be integrated with a classical GNSS tracking loop. This solution is thus a very promising approach for multipath mitigation.