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《Journal of Geodesy and Geodynamics》 2019-01
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An Effective Two-Dimensional Phase Unwrapping Method Using Cost Function Model of L~0 Norm

SHI Juan;GAO Jian;ZHANG Chengbin;FEI Xianyun;School of Surveying and Oceanographic Information Engineering,Huaihai Institute of Technology;School of Geographic and Biologic Information,Nanjing University of Posts and Telecommunications;Shandong Provincal Institute of Land Surveying and Mapping;  
In order to improve the cost model and convergence speed of the minimum norm unwrapping,we propose a two-dimensional global phase unwrapping method optimized with L0 norm.By analyzing the features of cost model in phase unwrapping with minimum norm,a cost function definition is employed in line with the L0 norm,which imposes a stronger constraint in the tangent direction of phase discontinuity boundary than that in normal direction.Meanwhile,to overcome slow convergence of low-frequency error compensation in linear equations,a data partitioning strategy is adopted in unwrapping processing,in view of the intrinsic independence of the minimum norm method,which only focuses on high-frequency information to improve efficiency in the iterative process,but processing of the low-frequency part is transferred to offsetting between data partitions.The experiment shows that reliability and efficiency of the proposed phase unwrapping method are enhanced.
【Fund】: 精密工程与工业测量国家测绘地理信息局重点实验室开放基金(PF2017-3)~~
【CateGory Index】: P207
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【Citations】
Chinese Journal Full-text Database 5 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Xu Jun-yi;An Dao-xiang;Huang Xiao-tao;Wang Guang-xue;College of Electronic Science and Engineering, National University of Defense Technology;Department of Information Countermeasures, Air Force Early Warning Academy;;A Novel Absolute Phase Determination Approach for Low Frequency Ultra-wideband SAR Interferometry[J];电子与信息学报;2015-11
2 GUO Yuan;WU Quan;MAO Qi;CHEN Xiao-tian;ZHEN Wei;YANG Zhen;College of Computer and Control Engineering,Qiqihar University;;Four directions least-square phase unwrapping algorithm based on lateral shearing interferometry[J];光电子·激光;2015-10
3 ZHOU Li;ZHENG Rui;Zhengzhou University of Science & Technology;;Two Dimensional Phase Unwrapping Based on Optical Optimization Algorithm and Particle Swarm Optimization Algorithm[J];激光杂志;2015-09
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5 ZHONG Heping;ZHANG Sen;TIAN Zhen;TANG Jinsong;School of Electronic Engineering,Naval University of Engineering;;A Fast Quality-guided Phase Unwrapping Algorithm in Heterogeneous Environment[J];武汉大学学报(信息科学版);2015-06
6 LI Cong;ZHAMG Ning;LIU Chao;School of Optoelectronic Engineering,Changchun University of Science and Technology;;The Volume Measurement System of Complex Surface Object Based on Phase Shift[J];长春理工大学学报(自然科学版);2015-02
7 WANG Zhi-yong;MENG Qing-ying;Geomatics College,Shandong University of Science and Technology;;Comparison and Analysis of Phase Unwrapping Algorithms in Mining Subsidence Monitoring[J];遥感信息;2014-06
8 CHENG Haiqin;CHEN Qiang;LIU Guoxiang;YANG Yinghui;LIU Liyao;Department of Remote Sensing and Geoinformation Engineering,Southwest Jiaotong University;School of Civil Engineering and Architecture,East China Jiaotong University;;Post-earthquake Landslides Distribution along Longmenshan Major Fault during Rainy Season with Short-baseline InSAR[J];测绘学报;2014-09
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