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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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.
|Title:||Performance Analysis of the TerraSAR-X Traffic Monitoring Concept|
|Date:||13 March 2006|
|Journal or Publication Title:||Journal of Photogrammetry and Remote Sensing|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 225-242|
|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)|
|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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