Detection and esitmation of moving objects for traffic monitoring by TerraSAR-X data

An alternative to the classical moving target detection techniques was presented to dual received antenna (DRA) spaceborne SAR. Targets with nonzero radial velocity components can be detected by exploiting the phase information of the interferogram and clutter suppression processing. This paper exploited the approach of clutter suppression on the interferometric phase, with the selected phase range, used Fractional Fourier Transform and a velocity-offset technique to detect target with small radial velocity component. In this paper, the calculation of entropy in the imagery domain by Fractional Fourier Transform (FrFT) is employed for improvement of moving target focusing according to the entropy. TerraSAR-X DRA mode experiments demonstrate the application valid of the proposed approach.