ISAR Imaging for Multiple Targets Based on Randomized Hough Transform

Multiple targets imaging using inverse synthetic aperture technique is a key problem on radar imaging field. This paper proposes a new approach to perform the motion compensation for multiple targets using randomized Hough transform (RHT). The targets´ amplitude distribution, i.e., corrugation image is transformed into frequency domain, then The RHT processing is operated on the frequency image to estimate each target´s Doppler frequencies respectively, and the multi-target ISAR images will be obtained after range alignment and phase compensation processing for each object respectively.