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Multi-Satellite Time-Delay Estimation for Reliable High-Resolution GNSS Receivers

Enneking, Christoph and Stein, Manuel and Castaneda, Mario and Antreich, Felix and Nossek, Josef A. (2012) Multi-Satellite Time-Delay Estimation for Reliable High-Resolution GNSS Receivers. In: 2012 IEEE/ION Position Location and Navigation Symposium (PLANS), pp. 488-494. IEEE. 2012 IEEE/ION Position, Location and Navigation Symposium, 23.-26. Apr. 2012, Myrtle Beach, SC, USA. DOI: 10.1109/PLANS.2012.6236918 ISBN 978-1-4673-0387-3 ISSN 2153-3598

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Official URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6236918


Reliable estimation of position in time and space has become a key necessity in several technical applications like mobile navigation, precision farming or network synchronization. While the increasing amount of operating Global Navigation Satellite Systems (GNSS) offers diverse possibilities to receive GNSS signals worldwide and to determine position accurately, inter- and intrasystem interference has been identified as a problem of growing importance. The performance of receivers which track all in-view satellites individually degrades if mutual interference is not taken into account. Therefore, we consider the problem of joint signal parameter estimation. For scenarios where the signals of different satellites superimpose at the receiver a joint maximum likelihood estimator for all relevant signal parameters is derived. In order to keep the computation of the related likelihood function, and the determination of its maximum, feasible for a low-complexity receiver, an iterative Expectation-Maximization (EM) algorithm is applied. Simulations for different scenarios show that this approach is efficient in the estimation theoretic sense, and robust against interference that is caused by signals with known structure.

Item URL in elib:https://elib.dlr.de/122028/
Document Type:Conference or Workshop Item (Speech)
Title:Multi-Satellite Time-Delay Estimation for Reliable High-Resolution GNSS Receivers
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Enneking, Christophchristoph.enneking (at) dlr.dehttps://orcid.org/0000-0001-6049-125X
Antreich, Felixfelix.antreich (at) dlr.deUNSPECIFIED
Nossek, Josef A.Technische Universität München (TUM)UNSPECIFIED
Date:April 2012
Journal or Publication Title:2012 IEEE/ION Position Location and Navigation Symposium (PLANS)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/PLANS.2012.6236918
Page Range:pp. 488-494
Series Name:Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium
Keywords:global positioning system, channel estimation, multiple access interference
Event Title:2012 IEEE/ION Position, Location and Navigation Symposium
Event Location:Myrtle Beach, SC, USA
Event Type:international Conference
Event Dates:23.-26. Apr. 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Project Dependable Navigation
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Enneking, Christoph
Deposited On:10 Oct 2018 14:06
Last Modified:10 Oct 2018 14:06

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