Noncoherent Imaging Experiments of Circular SAR

Circular synthetic aperture radar (CSAR) observes the scene by 360 degrees, the characteristics of targets from different aspects can be obtained. The noncoherent imaging is more popular since more textural features and lower speckle noise can be acquired. However, due to the motion error of the radar platform and the topography of observation scene, the noncoherent imaging result of full aperture can not be derived by simply noncoherent superimposing the subaperture images. In this paper, based on the enhanced correlation coefficient (ECC), we proposed a registration strategy to obtain full aperture noncoherent imaging result of CSAR, and the experiments demonstrate the effectiveness of our method.