Title :
Space-borne spotlight SAR interferometry processing
Author :
Yuanhao Li ; Cheng Hu ; Teng Long ; Chong Ni
Author_Institution :
Radar Res. Lab., Beijing Inst. of Technol., Beijing, China
Abstract :
SAR interferometry processing technology has developed for a few decades, and it is widely used in many geoscience applications. Nevertheless, conventional SAR interferometry processing methods do not suit for space-borne spotlight SAR interferometry processing. Based on co-registration with Doppler centroid frequency estimation and joint phase unwrapping method, a novel space-borne spotlight SAR interferometry processing method is proposed. It is validated by TerraSAR-X spotlight SAR data. Compared with SRTM data, the results show a clear improvement in DEM construction.
Keywords :
digital elevation models; frequency estimation; image registration; radar imaging; radar interferometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; DEM construction; Doppler centroid frequency estimation; SRTM data; TerraSAR-X spotlight SAR data; complex SAR images; joint phase unwrapping method; space-borne spotlight SAR interferometry processing technology; Doppler centroid frequency; Phase unwrapping; SAR Interferometry; Spotlight SAR;
Conference_Titel :
Radar Conference 2013, IET International
Conference_Location :
Xi´an
Electronic_ISBN :
978-1-84919-603-1
DOI :
10.1049/cp.2013.0184
