Multibaseline InSAR interferometric phase estimation using COMET-EXIP method

In this paper, borrowing the idea of distributed source model in direction-of-arrival (DOA) estimation, a novel distributed pixel model is proposed for multibaseline InSAR absolute phase estimation. And the COvariance Matching Estimation Techniques-Extend Invariance Principle (COMET-EXIP) method is used to estimate the absolute interferometric phase for multibaseline InSAR. The proposed method can provide a robust unwrapped interferometric phase even in the presence of the large image coregistration. Some simulation results verify the performance of the proposed method.