Title :
Height Reconstruction in Highly Sloped Area Using Multi-frequency InSAR Data
Author :
Bin Zou ; Wei Wang ; Yigang Zhou ; Shuang Zhou
Author_Institution :
Harbin Inst. of Technol., China
Abstract :
With the emerging of multi-frequency InSAR system, extraction of 3-D and variation information of earth surface using multi-frequency InSAR data has drawn more attention. Methods based on maximum-likelihood estimation (MLE), combining with some conventional phase unwrapping algorithm can be used to achieve this purpose. In this paper, MLE integrated with weighted multigrid phase-unwrapping method for high-sloped terrain profile reconstruction is presented and studied in detail. The performance of this method is also analyzed. Experiment result using simulated InSAR data shows that the method can be used to reconstruct high-sloped terrain with relatively high accuracy.
Keywords :
geophysical signal processing; image reconstruction; maximum likelihood estimation; radar imaging; radar interferometry; synthetic aperture radar; 3-D extraction; MLE; earth surface information; high-sloped terrain profile reconstruction; maximum-likelihood estimation; multifrequency InSAR; weighted multigrid phase unwrapping algorithm; Data mining; Earth; Frequency; Image reconstruction; Maximum likelihood estimation; Performance analysis; Phase noise; Probability density function; Surface reconstruction; Synthetic aperture radar interferometry; InSAR; MLE; height reconstruction; phase-unwrapping;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.312853
