An analytical modelling of geometrical warp for general SAR images

An analytical SAR image warp model which covers all the potential warp sources such as system parameter, imaging geometry and target relief is deduced based on the linear SAR imaging model developed in the paper. The warp model can compensate the inaccuracy of existing empirical model and enable some potential image-based applications such as SAR system calibration and 3D target reconstruction. (4 pages)