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Measurement of radar signatures of passenger cars: airborne SAR multi-frequency and polarimetric experiment

Palubinskas, Gintautas and Runge, Hartmut and Reinartz, Peter (2007) Measurement of radar signatures of passenger cars: airborne SAR multi-frequency and polarimetric experiment. IET Radar Sonar & Navigation, 1 (2), pp. 164-169. Institution of Engineering and Technology (IET). doi: 10.1049/iet-rsn:20060114. ISSN 1751-8784.

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The launch of SAR satellites with high resolution and dual receive antenna capabilities opens new possibilities for traffic monitoring applications on a global scale. Thus it will be possible to detect cars and measure their speed from the acquired along track interferometric data. The development of vehicle detection algorithms requires the knowledge of the radar signatures of vehicles, especially under consideration of the geometry of the radar look direction and the vehicle orientation. In this paper the radar signatures of the non-moving cars are presented. They are estimated experimentally from airborne E-SAR multi-frequency and polarimetric data, which have been collected during a flight campaign in 2003. Radar signatures are estimated for a considerable part of aspect angles ranging from 0º to 180º. The large synthetic aperture length of the E-SAR radar sensor allows the look processing of data and therefore allows an increase of the aspect angle resolution. The radar signature analysis for one type of passenger cars showed that the largest radar cross section values and thus the greatest chance for high probability of detection are for cars standing in rear and front view of radar beam direction. This holds true for all frequencies and co-polarizations. Radar cross section values for cross-polarizations and diagonal views are much lower and are therefore less suitable for car detection. The radar signature profile over a considerable range of aspect angles in fine resolution can be used further for the verification of simulation studies and for the performance prediction for traffic monitoring with a coming German TerraSAR-X satellite.

Item URL in elib:https://elib.dlr.de/47724/
Document Type:Article
Title:Measurement of radar signatures of passenger cars: airborne SAR multi-frequency and polarimetric experiment
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Palubinskas, GintautasGintautas.Palubinskas (at) dlr.deUNSPECIFIED
Runge, Hartmuthartmut.runge (at) dlr.deUNSPECIFIED
Reinartz, Peterpeter.reinartz (at) dlr.deUNSPECIFIED
Date:April 2007
Journal or Publication Title:IET Radar Sonar & Navigation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1049/iet-rsn:20060114
Page Range:pp. 164-169
EditorsEmailEditor's ORCID iD
Institution of Engineering and Technology, IETUNSPECIFIEDUNSPECIFIED
Publisher:Institution of Engineering and Technology (IET)
Keywords:Radar cross section, non-moving cars, airborne E-SAR sensor, look processing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:V SM - Sicherung der Mobilität (old)
DLR - Research area:Transport
DLR - Program:V SM - Sicherung der Mobilität
DLR - Research theme (Project):V - TS-X Verkehrsprodukte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Remote Sensing Technology Institute > SAR Signal Processing
Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Palubinskas, Dr.math. Gintautas
Deposited On:23 Jan 2008
Last Modified:19 Nov 2021 20:31

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