Title :
Quantitative comparison of terrain height accuracy between X-band and L-band polarimetric SAR interferometry
Author :
Liying Xu ; Shiqiang Li ; Weidong Yu ; Wang, Ruiqi
Author_Institution :
Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China
Abstract :
Compared with SAR interferometry(InSAR), polarimetric SAR interfermotry(PolInSAR) acquires plenty information to estimate parameters, and on the other side, the penetrability of low frequency electromagnetic wave is better than high frequency. So an accurate retrieval of the topography can be implemented from low frequency quad polarimetric SAR interfermotry on the basis of the Random Volume over Ground (RVoG) scattering model abstractly. But there is no paper validation about this theory with experiment data from quantitative point of view. In this paper, analysis and comparison of the quantitative topography accuracy between InSAR and PolInSAR, between X-band PolInSAR and L-band PolInSAR are presented firstly with data validation. Simulated data are used to prove the validity.
Keywords :
radar interferometry; radar polarimetry; remote sensing by radar; synthetic aperture radar; terrain mapping; topography (Earth); L-band PolInSAR; L-band polarimetric SAR interferometry; RVoG scattering model; Random Volume over Ground; X-band PolInSAR; X-band polarimetric SAR interferometry; electromagnetic wave; quad polarimetric SAR interfermotry; terrain height accuracy; topography retrieval; Accuracy; Coherence; Frequency estimation; L-band; Surfaces; Synthetic aperture radar; InSAR; L-band; PolInSAR; Topography accuracy; X-band;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6352265