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遥感学报 1998
A Method for LMS Phase Unwrapping Based on Phase-Gradient Estimation
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Abstract:
An inconsistency is one of the engineering obstacles to unwrap phase. Both noise and undersampling can cause inconsistencies. Up to now, the method of processing inconsistencies is to avoid inconsistent pixels whether they are caused by noise or undersampling. This paper presents a new method for phase unwrapping. After phase-gradient is estimated, unweighted and weighted phase unwrapping are used. It has been shown that the precision of phase can be improved because of a reasonable initial quantity for weighted least-squares.
