Towards Imaging Geodesy - Achieving Centimetre Pixel Localization Accuracy with TerraSAR-X

Konferenz: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
07.06.2010 - 10.06.2010 in Aachen, Germany

Tagungsband: EUSAR 2010

Seiten: 4Sprache: EnglischTyp: PDF

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Eineder, Michael; Minet, Christian; Fritz, Thomas (Remote Sensing Technology Institute, DLR, Germany)
Cong, Xiaoying (Remote Sensing Technology, TU-München, Germany)
Steigenberger, Peter (Institut für Astronomische und Physikalische Geodäsie, TU-München, Germany)

In our paper we demonstrate, how to achieve centimetre level pixel localization accuracy with TerraSAR-X. This accuracy - two orders of magnitude better than comparable systems - requires careful calibration of the radar system, the compensation propagation delays and of geodetic effects. Achieving this accuracy, high resolution imaging SAR systems are now able to support satellite geodesy with 2-dimensional displacement maps. We present the major error sources, our compensation method and verify our results with several experiments using image correlation technique and corner reflectors. We further present recent results on the magnitude 7.0 earthquake in Haiti on January 12, 2010.