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Performance Analysis of the TerraSAR-X Traffic Monitoring Concept

Meyer, Franz Josef and Hinz, Stefan and Laika, Andreas and Weihing, Diana and Bamler, Richard (2006) Performance Analysis of the TerraSAR-X Traffic Monitoring Concept. Journal of Photogrammetry and Remote Sensing, 61 (3-4), pp. 225-242. Elsevier. ISSN 0924-2716.

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Abstract

With TerraSAR-X, Germany will launch its first dual-channel SAR satellite mission in the year 2006. Besides other commercial applications TerraSAR-X should also be used as a demonstrator for traffic monitoring from space. This paper revises the theoretical background of traffic monitoring with space-based SARs and applies the conclusions to a performance analysis of the TerraSAR-X traffic monitoring system. As it is well-known, an object moving with a velocity deviating from the assump- tions incorporated in the focusing process of the synthetic aperture radar (SAR) principle will generally appear both displaced and blurred in the image. To study the impact of these (and related) distortions in focused SAR images, the analytic relations between an arbitrarily moving point scatterer and its conjugate in the SAR image have been reviewed and adapted to the dual-channel satellite specifications of TerraSAR-X. To be able to monitor traffic under these boundary conditions in real-life situations, a specific detection scheme is proposed. This scheme integrates complementary detection and velocity estimation algorithms with knowledge de- rived from external sources as, e.g., road databases. The main focus of this article lies on an extensive analytical and empirical accuracy analysis for both vehicle detec- tion and velocity estimation. The accuracy analysis includes a theoretical accuracy evaluation and a validation with real data.

Document Type:Article
Title:Performance Analysis of the TerraSAR-X Traffic Monitoring Concept
Authors:
AuthorsInstitution or Email of Authors
Meyer, Franz JosefUNSPECIFIED
Hinz, StefanTU München
Laika, AndreasTU München
Weihing, DianaTU München
Bamler, RichardUNSPECIFIED
Date:13 March 2006
Journal or Publication Title:Journal of Photogrammetry and Remote Sensing
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:61
Page Range:pp. 225-242
Editors:
EditorsEmail
ISPRS, UNSPECIFIED
Publisher:Elsevier
ISSN:0924-2716
Status:Published
Keywords:Remote Sensing, Radar, SAR Interferometer, Detection, Monitoring, Accuracy, Performance, GMTI
HGF - Research field:Aeronautics, Space and Transport (old)
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
Deposited By: Theresia Hantel
Deposited On:03 May 2007
Last Modified:15 Jan 2010 00:24

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