Title :
Investigation on Tree Height Retrieval with Polarimetric SAR Interferometry
Author :
Tan, Lulu ; Yang, Ruliang
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci.
Abstract :
Polarimetric SAR interferometry (POLInSAR) has been widely applied in tree height retrieval. A refined algorithm of three-stage inversion process for polarimetric SAR interferometry is proposed in this paper. The refined algorithm focuses on resolving the ambiguity estimation of the volume coherence. The coherence region extraction algorithm is combined with the three stage inversion algorithm to obtain accurate estimate of volume decorrelation. According to the physical explanation of the scattering model of the forest area, we can conclude that the proposed algorithm can get more accurate inversion results. The proposed algorithm is applied to simulated coherent L-Band SAR data provided by ESA, and the validity of the modified algorithm is confirmed.
Keywords :
feature extraction; geophysical signal processing; geophysical techniques; inverse problems; radar interferometry; radar polarimetry; remote sensing by radar; vegetation; ESA; L-Band SAR; POLInSAR; ambiguity estimation; coherence region extraction algorithm; forest; polarimetric SAR interferometry; three stage inversion algorithm; tree height retrieval; volume coherence; Coherence; Data mining; Decorrelation; Interferometry; Polarimetry; Radar scattering; Region 1; Scattering parameters; Shape; Surfaces; Polarimetric interferometry; coherence region; three-stage; tree height retrieval;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4780150
