The impact of potential error sources on geocoded products has been investigated with respect to the high resolution capabilities of the TerraSAR-X sensor. Datum shift parameters, maps, digital terrain and surface models have been identified as external error sources. The accuracy of the geocoded products depends heavily on the quality and availability of this information, which underlies regio...

TOPSAR is a recently proposed SAR mode for wide swath acquisition, which is intended to replace the conventional ScanSAR mode. TOPSAR will be used by the ESA Sentinel-1 SAR sensor in its main interferometric wide swath mode. TerraSAR-X has demonstrated the TOPSAR mode in space by acquiring and processing TOPSAR images for the first time. The paper reports the results of the image scalloping ana...

Underground mining activities lead to ground movements at the earth surface. An area-wide monitoring and the documentation of mining induced influences are required by the mining authorities. Work done in the past confirmed a significant potential of SAR interferometric methods to contribute information to such monitoring. Nevertheless, in spite of advanced SAR interferometric processing techni...

Forest mapping and monitoring surveys are often based on costly and time-consuming field work. Satellite remote sensing data can facilitate these procedures over large forest areas [1]. Therefore, the Forest Research Institute of Baden Württemberg and the Department of Remote Sensing and Landscape Information Systems of the University of Freiburg aim on developing methods to support and to impr...

Generating Digital Elevation Models (DEMs) out of interferometric image pairs is one of the well-known SAR applications which are used all over the world. The aim of our project is to find new/extended methods for InSAR processing to improve the quality of the final DEM result. We investigate in the fields of image registration, baseline estimation/interpolation and phase unwrapping. In each di...

In this paper we investigate the possibility to exploit TOPS data to measure ground displacement movements by means of Differential SAR Interferometry (DInSAR). Several critical points (i.e. coregistration) have to be faced during the data processing since, due to the TOPS signal characteristics, the interferometric chain is very sensitive to small implementation errors. The obtained results wi...

This paper describes the sliding spotlight algorithm and the processing strategy to be applied for TerraSAR-X. The steering spotlight geometry is analysed. Analysis of scene size and resolution demonstrates the particularities of this mode. The Doppler frequencies for individual targets and for a whole sliding spotlight scene are analyzed and the result shows the applicability of azimuth subape...