A Method for InSAR Baseline Refinement Based on CR

Abstract:

Interferometric baseline plays a very important role in InSAR data processing, and it will directly affect the accuracy of interferometric result. Shuping area is covered by all of vegetation, so the coherence is very low. In Shuping area, it is very difficulty to generate clearly residue stripe to use the FFT method and to find natural coherence pixels points as GCP to refine the baseline to meet the need of monitoring the deformation accurately. But through CR stability phase information can be got. So It is also highlights to the apply CR in this region to refine the baseline parameters. In this article, the baseline got from coarse orbit file is regarded as initial value, and that got from precise orbit file is regarded as True. By comparing and analyzing the parameters of refined baseline with that of the precise baseline, it can be concluded that the refined method based on CRs is correct and feasible.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 569-572
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.569
• Online since: December 2012
• Authors: Hong Li Zhao, Jing Hui Fan, Shu Chang Fu, Xiao Fang Guo
• Keywords: Baseline Refinement, Cr, InSAR

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