| ????????????Tarjan????PS???????????????? |
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| 引用本文： | 李刚,乔学军,聂兆生,贾治革.????????????Tarjan????PS????????????????[J].大地测量与地球动力学,2013,33(4):124-127. |
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| 作者姓名： | 李刚 乔学军 聂兆生 贾治革 |
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| 作者单位： | 1. 中国地震局地震研究所(地震大地测量重点实验室),武汉,430071
2. 中国地震局地震研究所(地震大地测量重点实验室),武汉430071 ;中国地震局地壳应力研究所武汉科技创新基地,武汉430071 |
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| 基金项目： | 中国地震局地震行业科研专项，国家自然科学基金 |
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| 摘 要： | ???????PSInSAR????????ж????????????????????????????????Tarjan????PS?????????????????????????????Envisat????SAR????????????PSInSAR?????????????????????Ч???????????????????????????????????????????????????????????????д???PS????????????????????????????
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| 关 键 词： | InSAR?????? Tarjan?? PSInSAR SBAS ??λ??? |
PS POINT CLOUD SEGMENTATION AND ORBITAL RAMP ESTIMATION BASED ON DELAUNAY TRIANGULATION AND TARJAN'S ALGORITHM |
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| Li Gang;Qiao Xuejun;Nie Zhaosheng;Jia Zhige.PS POINT CLOUD SEGMENTATION AND ORBITAL RAMP ESTIMATION BASED ON DELAUNAY TRIANGULATION AND TARJAN'S ALGORITHM[J].Journal of Geodesy and Geodynamics,2013,33(4):124-127. |
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| Authors: | Li Gang;Qiao Xuejun;Nie Zhaosheng;Jia Zhige |
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| Institution: | Li Gang;Qiao Xuejun;Nie Zhaosheng;Jia Zhige;Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA;Wuhan Base of Institute of Crustal Dynamics,CEA; |
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| Abstract: | The PS point cloud segmentation and orbital ramp correction based on the Delaunay Triangulation and Tarjan’s algorithm was proposed in order to amend the estimation errors of orbital ramp correction during the PSInSAR processing. The PSInSAR results of Kashi prefecture recorded by the Envisat satellite of European Space Agency show that: Comparing with the traditional methods, this algorithm could eliminate the orbital errors effectively and avoid the errors caused by the not??unicom unwrapping area. And the algorithm is applicable to the areas with continuous distribution of PS points in the entire images and could be coverd basically. |
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| Keywords: | orbital ramp of InSAR Tarjan's algorithm PSInSAR SBAS phase unwrapping |
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