A new polarization state conformation and its application to coherence optimization in PolInSAR

A new coherence optimization algorithm is proposed for PolInSAR applications by using the polarization state conformation (PSC) algorithm based on the polarimetric basis transformation along with the polarization signatures. After this algorithm applied the resemblance between the scattering mechanisms of the same invariant target in both images is maximized. Then, coherence maps between the multidate POLSAR images, before and after the algorithm has been applied, are generated. As a result, the coherence, after the PSC algorithm has been applied, gives the best coherence or optimized coherence between the multidate POLSAR images. The effects predicted by the theory are confirmed by the POLSAR data acquired by the Jet Propulsion Laboratory SIR-C mission.