Synchronous and nonsynchronous multi-satellite platform MT-InSAR three-dimensional deformation decomposition method based on minimum acceleration

The invention provides a synchronous and nonsynchronous multi-satellite platform MT-InSAR three-dimensional deformation decomposition method based on minimum acceleration. A satellite line of sight direction MT-InSAR deformation time sequence and a deformation rate can be decomposed into east and west, north and south, and vertical directions. The method comprises the following steps of step1, using a MT-InSAR to invert a line of sight direction deformation time sequence of a lifting and descending rail satellite image set; step2, extracting a line of sight direction common deformation time sequence acquired from inversion of a lifting and descending rail satellite platform; step3, carrying out space registration and extracting a homonymic high-coherence point of a lifting and descending rail satellite platform image set; and step4, for characteristics of mixed data of a same period and different periods, mixedly arranging lifting and descending rail time vectors and removing repeatedprocessing, establishing