| 永久散射体点目标提取方法研究 |
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| 引用本文： | 龙四春,李陶,冯涛.永久散射体点目标提取方法研究[J].大地测量与地球动力学,2011,31(4):144-148. |
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| 作者姓名： | 龙四春 李陶 冯涛 |
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| 作者单位： | 1)中南大学资源与安全工程学院，长沙 410083;2)湖南科技大学煤炭资源清洁利用与矿山环境保护湖南省重点实验室，湘潭 411201;3)武汉大学卫星导航定位技术研究中心，武汉 430079 |
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| 基金项目： | 国家自然科学基金(41004002); 中南大学博士后科学基金 |
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| 摘 要： | 分析幅度稳定性、相位稳定性、时序相关性及振幅离差阈值等多种PS点提取方法的特点与缺陷，提出基于时序相关系数阈值与振幅离差阈值并集和交集的PS点识别策略，给出其相应模型，并实例验证了该方法的有效性与优越性。
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| 关 键 词： | 永久散射体 识别提取 交集 并集 点目标检测 |
STUDY ON SELECTION OF PS POINT TARGETS |
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| Long Sichun,Li Tao,Feng Tao.STUDY ON SELECTION OF PS POINT TARGETS[J].Journal of Geodesy and Geodynamics,2011,31(4):144-148. |
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| Authors: | Long Sichun Li Tao Feng Tao |
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| Institution: | 1)School of Resources and Safety Engineering of Central South University, Changsha 410083;2)Hunan Key Laboratory of Clean Coal Resources Utilization and Mine Environment Protection, Hunan University of Science and Technology , Xiangtan 411201;3)GNSS Engineering Research Center, Wuhan University, Wuhan 430079 |
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| Abstract: | The recognition and selection of high-coherence PS points is a premise that guarantees the high-precision of permanent scatterers.The characteristics and flaws of all kinds of selection methods,such as amplitude stability,phase stability,timing sequence correlation and amplitude dispersion index threshold were analyzed.The recognition strategy of PS points is brought forward based on the union and intersection of time sequence correlation coefficient threshold and amplitude dispersion index threshold.The ba... |
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| Keywords: | Permanent Scatterer (PS) recognition and selection intersection union point target check |
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