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Low-Complexity Multipath Mitigation Technique Based on Multi-Correlator Structures

Siebert, Christian and Konovaltsev, Andriy and Meurer, Michael (2023) Low-Complexity Multipath Mitigation Technique Based on Multi-Correlator Structures. In: 2023 IEEE/ION Position, Location and Navigation Symposium, PLANS 2023, pp. 935-945. IEEE. IEEE/ION PLANS 2023, 2023-04-24 - 2023-04-27, Monterey, USA. doi: 10.1109/PLANS53410.2023.10140016. ISBN 978-166541772-3. ISSN 2153-3598.

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Official URL: https://ieeexplore.ieee.org/abstract/document/10140016


Multipath propagation is still a major source of error in global navigation satellite systems (GNSSs), especially in urban environments. Conventional GNSS receivers provide under such conditions only a degraded accuracy. At the same time, applying an effective but computationally complex multipath mitigation algorithm potentially exceeds cost or energy consumption requirements. Therefore, a low-complexity multipath mitigation technique is proposed in this paper. It relies on a multi-correlator structure with an Extended Kalman Filter (EKF) replacing the conventional delay locked loop (DLL) for the code tracking. Multipath resilience is achieved by incorporating the radio propagation channel between satellite and user in the measurement model, inherently accounting for reflected signal replicas. In order to reduce complexity, the effect of the number and distribution of the correlators used has been investigated. It turned out, that even with a very low number of correlators, a high multipath mitigation capability is maintained. The results have been validated with actual measurement data.

Item URL in elib:https://elib.dlr.de/193586/
Document Type:Conference or Workshop Item (Speech)
Title:Low-Complexity Multipath Mitigation Technique Based on Multi-Correlator Structures
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Siebert, ChristianUNSPECIFIEDhttps://orcid.org/0000-0001-7228-5488153688271
Meurer, MichaelUNSPECIFIEDhttps://orcid.org/0000-0001-7465-6705UNSPECIFIED
Date:8 June 2023
Journal or Publication Title:2023 IEEE/ION Position, Location and Navigation Symposium, PLANS 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 935-945
Keywords:GNSS Receiver, Multipath Mitigation, Multi-Correlator, Low-Complexity
Event Title:IEEE/ION PLANS 2023
Event Location:Monterey, USA
Event Type:international Conference
Event Start Date:24 April 2023
Event End Date:27 April 2023
Organizer:Institute of Navigation (ION)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Project Navigation 4.0
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Siebert, Christian
Deposited On:21 Aug 2023 15:34
Last Modified:24 Apr 2024 20:54

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