A Method to Extract Three Dimensional Scattering Centers Based on a Super-Resolution Algorithm

Aiming at the turntable-arc-orbit measurements method,a super-resolution algorithm for the 3-D scattering centers extraction is presented based on the 2D MEMP method.The method estimates the signal parameters correctly by utilizing the structure of a Hankel matrix and the space invariance technology,and needs no additional pairing step.The numerical simulations of a cube model with 8 scattering centers in its vertex indicate that the method estimates the parameters correctly and is much robust to noise.The method is further extended to the N-dimensional case and a general expression for estimation is given.