SAR imaging method for interference analysis

摘要

The present invention relates to a SAR imaging method (40) for interference analysis, wherein the method comprises two or more SAR acquisitions of one and the same area of the surface of the earth performed using one or more synthetic aperture radars. Receiving the raw SAR data relating to, and processing the raw SAR data to generate a SAR image. In this method, for each SAR acquisition, each raw SAR data relating to said SAR acquisition is processed based on two different sets of processing parameters, two different sets of processing parameters being the same for all SAR acquisitions A first set comprising focusing Doppler parameters calculated based on physical Doppler parameters related to all SAR acquisitions, and respective physical Dopplers related to said SAR acquisitions and related to said SAR acquisitions And calculating a second set including the respective radiation dose equalization Doppler parameters calculated based on the parameters. In particular, the process focuses on the raw SAR data related to all SAR acquisitions based on the above mentioned focusing Doppler parameters, and also generates a radiation dose distortion without reducing the azimuth resolution for each SAR acquisition Without equalizing the respective radiation equalizing based on the respective radiation equalizing Doppler parameters to the respective SAR data in order to correct possible differences in the pointing of synthetic aperture radars used to carry out SAR acquisition And applying.