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In-Flight Multi-Channel Calibration for Airborne Post-Doppler STAP

Barros Cardoso da Silva, Andre and Baumgartner, Stefan V. (2021) In-Flight Multi-Channel Calibration for Airborne Post-Doppler STAP. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. European Conference on Synthetic Aperture Radar (EUSAR), 2021-03-29 - 2021-04-01, Leipzig, Germany. ISSN 2197-4403.

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Abstract

Multi-channel calibration is essential for detecting moving targets as well as for estimating their positions and velocities accurately. This paper presents an efficient calibration algorithm for along-track multi-channel systems, in particular for space-time adaptive processing (STAP) techniques. The proposed algorithm corrects not only the phase and magnitude offsets among the receive channels, but also the Doppler centroid variation considering the range dependency and the aircraft’s motion. Important parameters and offsets are estimated directly from the radar range-compressed data. The proposed algorithm is evaluated based on real multi-channel X-band data acquired by the DLR’s airborne system F-SAR. The experimental results show the potential of the proposed algorithm for traffic monitoring applications.

Item URL in elib:https://elib.dlr.de/133964/
Document Type:Conference or Workshop Item (Speech)
Title:In-Flight Multi-Channel Calibration for Airborne Post-Doppler STAP
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Barros Cardoso da Silva, AndreAndre.Silva (at) dlr.dehttps://orcid.org/0000-0001-5056-4013
Baumgartner, Stefan V.Stefan.Baumgartner (at) dlr.dehttps://orcid.org/0000-0002-8337-6825
Date:2021
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
ISSN:2197-4403
Status:Accepted
Keywords:Synthetic aperture radar (SAR), radar signal processing, radar applications, calibration, ground moving target indication (GMTI), airborne radar, traffic monitoring.
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Dates:2021-03-29 - 2021-04-01
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - D.MoVe
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Barros Cardoso da Silva, Andre
Deposited On:03 Feb 2020 08:01
Last Modified:29 Mar 2021 22:26

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