An algebraic approach to ground-volume decomposition from multi-baseline PolInSAR data

In this paper, an algebraic methodology is described for the separation of ground and volume contributions basing on multi-baseline and multi-polarimetric acquisitions. As a result, a new general procedure is defined that encompasses single-baseline PolInSAR as a special case, and allows to proceed to ground/volume separation not only through model based approaches, but also through model free and hybrid approaches. Furthermore, it will be shown that such a methodology yields the best solution in the Least Square sense.