Comparison of InSAR Phase Unwrapping Algorithms and Error Analysis
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Abstract
This paper compares three kinds of phase unwrapping algorithms, residue-cut algorithm, leastsquare algorithm and statistical-cost network-flow algorithm.From the comparison, it can be concluded that Goldstein residue-cut method is superior to the least-squares method, both in calculation efficiency and in unwrapping precision.Lastly, the height error caused by the bias of unwrapped phase is analyzed.
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