Abstract
GEO SAR has characteristics of short revisit time of less than one day, extended coverage area with even larger than 1000 km and long coverage time of several hours for the scene of interest, and thus can provide data of a certain region of interest with lots of view angles. Consequently, employing GEO SAR for three-dimensional (3D) deformation retrieval can effectively address the drawbacks in LEO SAR cases, which are the lack of available data and the limited deformation retrieval accuracy. In this chapter, we first give some brief explanation about the reason why we should conduct 3D deformation retrieval instead of the simple one-dimensional (1D) line-of-sight (LOS) deformation measurement. Then, we focus on the GEO SAR 3D deformation retrieval by multi-angle measurement. To obtain the optimal accuracy, we consider the reasonable criterion to evaluate the 3D deformation measurement accuracy and implement it for optimal sub-aperture selection in 3D deformation retrieval.
© 2017 Science China Press and Springer-Verlag Berlin Heidelberg. Reprinted, with permission, from Science China Information Sciences.
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Long, T., Hu, C., Ding, Z., Dong, X., Tian, W., Zeng, T. (2018). Three Dimensional Deformation Retrieval in GEO D-InSAR. In: Geosynchronous SAR: System and Signal Processing. Springer, Singapore. https://doi.org/10.1007/978-981-10-7254-3_7
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DOI: https://doi.org/10.1007/978-981-10-7254-3_7
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