doi:

DOI: 10.3724/SP.J.1146.2006.01822

Journal of Electronics & Information Technology (电子与信息学报) 2008/30:6 PP.1326-1330

An Improved InSAR Phase Unwrapping Method Based on Iterative-Weighted Greedy Algorithm


Abstract:
In order to improve the precision of phase unwrapping in InSAR data processing, a new method is presented based on iterative-weighted greedy algorithm. First, the theory derivation is given in detail. Second, to make the result jump out the local optimization and approach the true phase, an iterative-weigthed greedy algorithm is addressed. Finally, the experiment analysis on simulation data and the real InSAR data verifies the effectiveness of the novel method.

Key words:InSAR,Phase unwrapping,Greedy algorithm,Iterative-weighted

ReleaseDate:2014-07-21 15:41:27



[1] 王超,张红,刘智. 星载合成孔径雷达干涉测量. 北京:科学出版社, 2002, 9: 100-138.

[2] Goldstein R M, Zebker H A, and Werner C L. Satellite radar interferometry: Two-dimensional phase unwrapping[J]. Radio Sci, 1988, 23(4): 713-720.

[3] Xu W and Cumming I. A region growing algorithm for InSAR phase unwrapping[A]. Proc. IGARSS'96[C]. Piscataway. NJ, 1996: 2044-2046.

[4] Ghiglia D and Romero L. Robust two-dimensional weighted and unweighted phase unwrapping that uses fast transforms and iterative methods [J]. J. Opt. Soc. Am. A, 1987, 11(1): 267-280.

[5] Carballo G F and Fieguth P W. Probabilistic cost functions for network flow phase unwrapping[J]. IEEE Trans. on Geosci Remote Sensing, 2000, 38(5): 2192-2201.

[6] Fornaro G, Franceschett G, and Lanari R, et al.. Interferometric SAR phase unwrapping using the finite elements method[J]. IEE Proc. Radar, Sonar Navig, 1997, 144(8): 226-238.

[7] Collaro A and Frances chetti G. Phase unwrapping by means of genetic algorithms[J]. J. Opt. Soc. Am. A, 1997, 15(2): 407-418.

[8] Ying L, Frey B, Koetter R, and Munson D C. An iterative dynamic programming approach to 2-D phase unwrapping, Proc. IEEE Remote Sensing Symp., Toronto, Canada, June 2002: 469-471.

[9] 《现代数学手册》编纂委员会. 现代数学手册.计算机数学卷. 武汉:华中科技大学出版社, 1999, 12: 641-676.

[10] 彭海良,云日升. 干涉合成孔径雷达二维相位展开问题及其算法[J]. 测试技术学报, 2003, 17(2): 99-104.

[11] Besag Julian. Spatial interaction and the statistical analysis of lattice system. J.R. Statistic. Soc. B, 1974, 36(5): 192-236.

[12] Itoh K. Analysis of the phase unwrapping problem. Appl. Opt., 1982, 21(14): 2470-2477.