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Summary of Proposal GEO2354

TitleMulti-Mode Exploration of High-Resolution Ground/Space Bi- and Multi-Static Staring Spotlight SAR
Investigator Wang, Robert Yu - Chinese Academy of Sciences, Inst. of Electronics, Dep. of Space Microwave Remote Sensing System
Team Members
Professor Wang, Yu - Institute of Electronics, Chinese Academy of Sciences, Department of Space Microwave Remote Sensing System
Prof. Balz, Timo - Wuhan University, the State Key Lab of Info Engineering in Surveying, Mapping and Remote Sensing
SummaryObjectives: Ground/space bi-static SAR is a rather new technique for the precise surveillance of local areas of interests for surface motions using spaceborne SAR systems as transmitters and ground- and spaceborne antennas as receivers. In this way, multiple antennas can receive (almost) simultaneously. However, because the ground-based antennas are static, only a rather small area can be observed. This small area should therefore be covered in the highest possible resolution. We are therefore particularly interested in the staring spotlight product of TSX to support the highest possible resolution for our experiment.Methods: In the proposed experiment, our ground receiver is integrated with TerraSAR-X to be a ground/space bi-static SAR system. Due to the complicated geometry configuration, it is necessary to develop an effective image-focusing algorithm. To take full advantage of the large bandwidth of TerraSAR-X ST mode in both azimuth and range direction, we plan to carry out multiple aperture interferometry (MAI) and multi-chromatic analysis (MCA) to obtain the along-track deformation and the DEM without height ambiguity.Date requirements: For the proposed project we need a long time-series of staring mode spotlight data. We suggest to cover a two year time span with a 22-day temporal resolution. This long time-spane will allow us to include also the thermal deformation of the buildings in the scene.Funding: The project is fully funded by internal funding of the IECAS and of LIESMARS, Wuhan University.

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