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Multipath Mitigation in a Galileo SOL Receiver

Antreich, Felix and Nossek, Josef A. (2006) Multipath Mitigation in a Galileo SOL Receiver. In: 2006 NAVITEC ESA. NAVITEC 2006, 2006-12-11 - 2006-12-13, ESA ESTEC Noordwijk, The Netherlands.

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The potential of the SAGE (Space-Alternating Generalized Expectation Maximisation) algorithm for Galileo Safety-of-Life (SoL) navigation systems in order to distinguish the line-of-sight signal (LOSS) is to be considered. The SAGE algorithm is a low-complexity generalization of the EM (Expectation-Maximisation) algorithm, which iteratively approximates the maximum likelihood estimator (MLE) and has been successfully applied for parameter estimation (relative delay, incident azimuth, incident elevation, Doppler frequency, and complex amplitude of impinging waves) in mobile radio environments. This study discusses receivers using a single antenna. Whereas we estimate the complex amplitudes and relative delays of the impinging waves. The results of the performed computer simulations and discussion indicate that the SAGE algorithm has the potential to be a very powerful method to successfully estimate parameters of impinging waves for Galileo SoL navigation systems. SAGE has proven to be a promising method to combat multipath for safety critical navigation applications due to its good performance, fast convergence, and low complexity.

Item URL in elib:https://elib.dlr.de/45208/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Multipath Mitigation in a Galileo SOL Receiver
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:30 October 2006
Journal or Publication Title:2006 NAVITEC ESA
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Multipath Mitigation, Maximum Likelihood, SAGE, GNSS
Event Title:NAVITEC 2006
Event Location:ESA ESTEC Noordwijk, The Netherlands
Event Type:international Conference
Event Dates:2006-12-11 - 2006-12-13
Organizer:ESA ESTEC
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Projekt GalileoNAV (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Antreich, Felix
Deposited On:05 Mar 2007
Last Modified:12 Dec 2013 20:21

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