Phase Unwrapping Method for INSAR

doi:10.13190/j.jbupt.2016.02.002

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2016, Vol. 39 ›› Issue (2): 10-14,34.doi: 10.13190/j.jbupt.2016.02.002

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Phase Unwrapping Method for INSAR

SUN Xue-hong^1,2,3, YU Xiang-ming^1,2, LIU Li-ping^1,2, ZENG Zhi-min³, ZHANG Cheng^1,2

1. School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China;
2. Ningxia Key Laboratory of Intelligent Sensing for Desert Information, Yinchuan 750021, China;
3. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2015-12-14 Online:2016-04-28 Published:2016-04-28

Abstract

Abstract:

Due to disadvantages of Goldstein's branch cut algorithm, a new phase unwrapping method for interferometric synthetic aperture radar (INSAR) was proposed according to distribution characteristics of residue. Firstly, the neighbor dipoles preprocessing algorithm was performed to establish independent and short branch cuts. Secondly, the adaptive genetic simulated annealing algorithm was performed to calculate optimized combination of remaining residues. Ultimately, the branch cuts with short length was generated in a short time, and large "isolated island" phenomenon was avoided. Experiment shows that the proposed method has advantages in precision and operation time compared with some typical phase unwrapping algorithm.

Key words: interferometric synthetic aperture radar, phase unwrapping, branch cut, genetic algorithm, simulated annealing algorithm

CLC Number:

TN957.52

SUN Xue-hong, YU Xiang-ming, LIU Li-ping, ZENG Zhi-min, ZHANG Cheng. Phase Unwrapping Method for INSAR[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2016, 39(2): 10-14,34.

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Phase Unwrapping Method for INSAR

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