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Interferometric filtering is one of the most important procedures in InSAR data processing as it refers to the quality of phase observations and the final products. A variant under the framework of Goldstein filter is presented in this paper, which is based on the robust coherence estimator from the second kind statistics. Compared with the state-of-the-art, the significant advantage of the new method is that more accurate filtering parameter alpha can be deduced and therefore betterdoi:10.11947/j.AGCS.2016.20150457 doaj:bfd673d17f2c4d03ad407b8e756ed995 fatcat:w7ytucouanga5fghbfncyjjqxq