Title :
Decorrelation in InSAR echoes with existence of channel mismatch
Author :
Jing, Yu ; Zhiwei, Yang ; Xiaohua, Li ; Yaan, Li
Author_Institution :
Coll. of Marine, Northwestern Polytech. Univ., Xi´´an, China
Abstract :
The cross-track baseline in InSAR system is very sensitive to terrain fluctuation which is widely used to retrieve the DEM. The cross-track baseline influences the coherence of the radar echoes seriously. In this paper, we analyzed the decorrelation caused by cross-track baseline and the channel mismatch respectively. And a decorrelation reduction method by means of compensating the decorrelation caused by the spatial baseline is given. Finally, simulation results verified the validity.
Keywords :
correlation methods; digital elevation models; radar cross-sections; radar signal processing; synthetic aperture radar; DEM; InSAR echoes decorrelation; channel mismatch; cross-track baseline; decorrelation reduction method; digital elevation model; radar echoes; spatial baseline; terrain fluctuation; Coherence; Correlation; Decorrelation; Educational institutions; Geometry; Radar; Receivers; InSAR; channel mismatch; cross-track baseline; decorrelation;
Conference_Titel :
Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4577-0893-0
DOI :
10.1109/ICSPCC.2011.6061613
