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《Journal of Geodesy and Geodynamics》 2011-S1
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AN IMPROVED ALGORITHM OF WEIGHTED LEAST-SQUARES FOR PHASE UNWRAPPING

Dong Chunmin{1)},Liu Guolin{1,2)},Yu Shengwen{1)},Liu Weike{1)} and Zhou Wei{1)}1)Geomatics College,Shandong University of Science and Technology,Qingdao 2665102)Key Laboratory of Surveying and Mapping Technology on Island and Reef,State Bureau of Surveying and Mapping,Qingdao 266510  
Phase unwrapping is the key step in topographic elevation mapping and reconstruction of three-dimensional terrain model by Interferometric Synthetic Aperture Radar(InSAR).Considering the problem that the existing weighted and unweighted least-squares phase unwrapping results need smoothing,an improved algorithm using phase derivative variance map based on the principle of Least-squares phase unwrapping is proposed.With the real InSAR data,by comparison of the improved algorithm with the existing weighted and unweighted least-squares algorithm,it is verified that the proposed algorithm can effectively deal with the situation that there are too many residues and can get a higher accurate and reliable phase unwrapping results.
【Fund】: 国家自然科学基金(40874001);; 海岛(礁)测绘技术国家测绘局重点实验室资助项目(2010A01)
【CateGory Index】: TN958
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 ZHAO-Zheng ①,ZHANG Ji-xian ①,ZHANG Guo ②(①Chinese Academy of Surveying and Mapping,Beijing 100039,China;②School of Information Engineering in Remote Sensing,Wuhan University,Wuhan 430079,China);The Application of Genetic Algorithms in InSAR Phase Unwrapping[J];Developments In Surveying and Mapping;2002-03
2 Liu Guolin1), Du Zhixing1),Xue Huaiping2) and Hao Xiaoguang2) 1)Geo-Information Science & Engineering, Shandong University of Sci-Tech, Qingdao 266510 2)Institute of Geodesy and Geophysics, CAS, Wuhan 430077;APPLICATION OF KALMAN FILTERS TO NOISE ELIMINATING AND PHASE UNWRAPPING OF INSAR[J];Journal of Geodesy and Geodynamics;2006-02
3 XU Caijun 1 WANG Hua 1 (1 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079,China);Comparison of InSAR Phase Unwrapping Algorithms and Error Analysis[J];Editorial Board of Geomatics and Information Science of Wuhan University;2004-01
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 TIAN Hai-tao1,CHEN Wei-qing2,MA Jin-zhong3 (1.Civil Engineering Department,Guilin University of Technology,Guilin 541004,China;2.Civil Engineering and Architecture College,Guangxi University,Nanning 530004,China;3.Information and Communication College,Guilin University of Electronic Technology,Guilin 541004,China);Path-following methods of the InSAR phase unwrapping using network programming technology[J];Engineering of Surveying and Mapping;2008-05
2 Li Tao1),Zhang Shiyu1) and Zhou Chunxia2)1)GNSS Engineering Research Center, Wuhan University, Wuhan 4300792)Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079;COMPARISON AMONG METHODS OF FILTERING AND PHASE UNWRAPPING FOR SAR INTERFEROGRAM[J];Journal of Geodesy and Geodynamics;2007-01
3 Cheng Pu,Xu Caijun and Wang Hua(School of Geodesy and Geomatics,Wuhan University,Wuhan 430079);ANALYSIS OF PHASE UNWRAPPING ALGORITHM[J];Journal of Geodesy and Geodynamics;2007-03
4 Xu Apei1), Gui Qingming1, 2) and Han Songhui1) 1)Institute of Science,PLA Information Engineering University,Zhengzhou 4500012)Institute of Surveying and Mapping,PLA Information Engineering University,Zhengzhou 450002;ANALYSIS OF MODEL ERROR EFFECT ON KALMAN FILTERING[J];Journal of Geodesy and Geodynamics;2008-01
5 Ju Chengyu1,2),Deng Kazhong1,2)and Fan Hongdong1,2)1)Jiangsu Province Key Laboratory Resources and Environmental Information Engineering,Xuzhou 2211162)School of Environment Science and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116;STUDY ON PHASE UNWRAPPING OF SAR INTERFEROGRAM OVER MOUNTAIN REGION IN WESTERN CHINA[J];Journal of Geodesy and Geodynamics;2010-04
6 XIE Xian-ming1,PI Yi-ming1,PENG Bao2(1.School of Electronic Engineering,University of Electronics Science and Technology of China,Chengdu,Sichuan 611731,China;2.Department of Information Engineering,Southwest University of Science and Technology of China,Mianyang,Sichuan 621006,China);Phase Unwrapping:An Unscented Particle Filtering Approach[J];Acta Electronica Sinica;2011-03
7 Tao Qiuxiang,Liu Guolin(Geoinformation Science & Engineering College,Shan dong University of Science and Technology,Qingdao 266510,China);The basic principle and application of EarthView InSAR[J];Geotechnical Investigation & Surveying;2009-04
8 LIU Guolin1,HAO Huadong1,2,YAN Man1,3,TAO Qiuxiang1 1.Geomatics College,Shandong University of Science and Technology,Qingdao 266510,China;2.Metrology Verification and Testing Institute,Zhoushan Institute of Calibration and Testing for Quality and Technical Supervision,Zhoushan 316021,China;3.Computer and Information Engineering College,Heilongjiang Institute of Science and Technology,Harbin 150027,China;Phase Unwrapping Algorithm by Using Kalman Filter Based on Topographic Factors[J];Acta Geodaetica et Cartographica Sinica;2011-03
9 Nie Zhaosheng1,2),Zhu Fuying1,2) and Fu Ningbo3)(1)Institute of Seismology,CEA,Wuhan 4300712)Crustal Movement Laboratory,Wuhan 4300713)Jiangxi Supervision and Inspection Center for Surveying and Mapping Product Quality,Nanchang 330046);APPLICATION OF KALMAN FILTERING IN DETECTING IONOSPHERIC TEC ANOMALY PRIOR TO EARTHQUAKE[J];Journal of Geodesy and Geodynamics;2011-03
10 ZHOU Wei1 TAO Qiuxiang1,2 CUI Juan3 DONG Chunmin1(1 Geomatics College,Shandong University of Science and Technology;2 Key Laboratory of Surveying and Mapping Technology on Island and Reef,State Bureau of Surveying and Mapping,579 Qianwangang Road,Qingdao 266510,China;3 Shandong Provincial No.4 Institute of Geological and Mineral Survey,228 Xiangyang Road,Weifang 261021,China);Application of Ground Control Points to Correct Error in InSAR Interferometry[J];Journal of Geomatics;2011-04
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 GAO Yong (Institute of RS & GIS,Beijing University, Beijing 100871,China);On INSAR 2D Phase Unwrapping Algorithm[J];Geography and Territorial Research;2000-04
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