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Self-contained Antenna Crosstalk and Phase Offset Calibration by Jointly Solving the Attitude Estimation and Calibration Problem

Zorn, Sören and Niestroj, M. and Caizzone, Stefano and Brachvogel, Marius and Meurer, Michael (2017) Self-contained Antenna Crosstalk and Phase Offset Calibration by Jointly Solving the Attitude Estimation and Calibration Problem. In: ION GNSS 2017. ION GNSS+ 2017, Portland, Orgeon, USA.

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Abstract

Array processing algorithms such as direction of arrival (DOA) estimation, deterministic beamforming and null-steering as well as spoofer detection and mitigation are known to be sensitive to errors in the model for the antenna array spatial response. In particular, unknown gain and phase mismatches between antenna channels, mutual coupling between antenna elements, crosstalk-effects in the RF-Frontend and in the case of using ephemeris data as auxiliary spatial information unknown antenna array attitude can seriously degrade the performances of array-processing algorithms. This paper proposes a novel algorithm to estimate gain, phase and mutual coupling / crosstalk coefficients as well as the attitude of the antenna array by exploiting the ephemeris from each GNSS satellite that is sent along with the navigation data. The estimation of the various parameters is based on a maximum likelihood approach. Numerical results are shown to illustrate the potential usefulness of the proposed calibration algorithm toward better accuracy and resolution in deterministic array-processing algorithms

Item URL in elib:https://elib.dlr.de/112950/
Document Type:Conference or Workshop Item (Speech)
Title:Self-contained Antenna Crosstalk and Phase Offset Calibration by Jointly Solving the Attitude Estimation and Calibration Problem
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Zorn, Sörenrwth aachenUNSPECIFIED
Niestroj, M.rwth aachenUNSPECIFIED
Caizzone, StefanoStefano.Caizzone (at) dlr.deUNSPECIFIED
Brachvogel, Mariusrwth aachenUNSPECIFIED
Meurer, MichaelMichael.Meurer (at) dlr.deUNSPECIFIED
Date:7 July 2017
Journal or Publication Title:ION GNSS 2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:GNSS, calibration, antenna, DOA
Event Title:ION GNSS+ 2017
Event Location:Portland, Orgeon, USA
Event Type:international Conference
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 Navigation 4.0
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Caizzone, Stefano
Deposited On:07 Jul 2017 11:05
Last Modified:31 Jul 2019 20:10

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