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-  2017 

GPS控制点辅助InSAR相位解缠算法研究
InSAR Phase Unwrapping Algorithms with the Aid of GPS Control Points

DOI: 10.13203/j.whugis20140956

Keywords: GPS,InSAR,相位解缠,枝切线法,马尔柯夫随机场,
GPS
,InSAR,phase unwrapping,residue-cut,Markov random field

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Abstract:

利用GPS控制点辅助合成孔径雷达干涉测量(interferometric synthetic aperture radar,InSAR)进行相位解缠能提高InSAR相位解缠的精度。首先提出了一种以多个GPS控制点为解缠起算点的多解缠起算点枝切线相位解缠算法;然后,针对上述算法仍可能存在解缠孤岛,且无法得到残差点解缠值、无法保证整周未知数的整周特性的问题,提出了结合上述算法和基于马尔柯夫随机场的GPS辅助InSAR相位解缠算法的综合算法。实验结果表明,综合算法结合了多解缠起算点枝切线相位解缠算法和基于马尔柯夫随机场的GPS辅助InSAR相位解缠算法的优势,解缠精度高、解缠范围大

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