Amalgamation of Two InSAR Phase Unwrapping Algorithms

Phase Unwrapping is one of the important steps in data-processing of Synthetic Aperture Radar (SAR) interferometry.The accuracy of unwrapping will directly affect the accuracy of interferometry.Through experimental studies,the paper firstly compares the two existing main algorithms of Phase Unwrapping on unwrapping principles,unwrapping ideas,characteristics and reasons causing an error as well,and then forms a better two-dimensional phase unwrapping algorithm by combining respective advantages.By making use of the new algorithm,the phase stripe unwrapped has a very high consistency with the original phase stripe of Interference phase diagram.