DocumentCode :
3348797
Title :
Iterative calibration of relative platform position: A new method for SAR baseline estimation
Author :
Tiangang Yin ; Christophe, E. ; Soo Chin Liew ; Ong, Sim Heng
Author_Institution :
Centre for Remote Imaging Sensing & Process., Nat. Univ. of Singapore, Singapore, Singapore
fYear :
2010
fDate :
25-30 July 2010
Firstpage :
4407
Lastpage :
4410
Abstract :
Baseline calibration is needed in most of SAR interferometry processing. An iterative optimization of baseline with constrain of relative platform position is presented in this paper. The SAR passes which gives inaccurate platform position is successfully detected and calibrated using this algorithm. After processing, new estimated baseline improves the quality of interferogram. Existence of reference Digital Elevation Model (DEM) error and atmospheric phase screen (APS) can also be detected from the convergence value. This method is based on a reversed concept of platform position estimation from interferometric result. Validation of method performed on multiple SAR images over Singapore.
Keywords :
digital elevation models; iterative methods; optimisation; radar imaging; radar interferometry; synthetic aperture radar; SAR baseline estimation; SAR interferometry processing; atmospheric phase screen; convergence value; digital elevation model error; inaccurate platform position; interferogram quality; iterative calibration; iterative optimization; multiple SAR images; platform position estimation; Calibration; Convergence; Estimation; Interferometry; Satellites; Synthetic aperture radar; SAR interferometry; baseline calibration; platform position;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
ISSN :
2153-6996
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
Type :
conf
DOI :
10.1109/IGARSS.2010.5652355
Filename :
5652355
Link To Document :
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