Robust forest height extraction using polarimetric SAR interferometry

Recently, many researches have demonstrated that polarimetric SAR interferometry is the most promising technique for forest parameter extraction. In this paper, we present a robust forest height extraction technique based on reliable phase estimation. The more accurate interferometric phase estimation can be attained with the reliable ground phase and canopy phase using three-stage inversion process and ESPRIT technique, respectively. We show the validity of the method by applying it to L-band simulated polarimetric and interferometric SAR data. The experimental results are also provided to give the availability of this method.