| PSInSAR永久散射体的自动探测 |
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| 引用本文： | 胡波,汪汉胜,贾路路.PSInSAR永久散射体的自动探测[J].测绘科学,2011,36(2):50-52. |
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| 作者姓名： | 胡波 汪汉胜 贾路路 |
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| 作者单位： | 中国科学院测量与地球物理研究所动力大地测量学重点实验室;中国科学院研究生院; |
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| 基金项目： | 国家杰出青年科学基金项目冰后回弹(40825012) |
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| 摘 要： | 为了有效探测合成孔径雷达差分干涉测量中的永久散射体,综合考虑永久散射体对雷达波的强反射特性和散射的稳定性,本文提出了三重阈值自动探测算法,即时序相关系数、振幅离差和振幅指数三重阈值串行结合的算法.该方法首先考虑回波信号的高信噪比特性,用平均相干系数和振幅两道阈值挑选出永久散射体候选点,然后考虑永久散射体强稳定性,用振幅...
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| 关 键 词： | 合成孔径雷达差分干涉测量 永久散射体 自动探测 信噪比 |
Automatic detection of permanent scatterers in PSInSAR |
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| HU Bo,WANG Han-sheng,JIA Lu-lu.Automatic detection of permanent scatterers in PSInSAR[J].Science of Surveying and Mapping,2011,36(2):50-52. |
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| Authors: | HU Bo WANG Han-sheng JIA Lu-lu |
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| Institution: | ①②(①Key Laboratory of Dynamic Geodesy,Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China;②Graduate School of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | In order to effectively detect permanent scatterers in differential Interferometry of Synthetic Aperture Radar,a ri-threshold automatic method was proposed in the paper taking into account the characteristics of strong reflection and stable backscattering of permanent scatterers to radar waves.It serially set tri-threshold corresponding to time-series correlation-coefficient,amplitude dispersion index and amplitude index.In this method,considering the characteristic of high signal-noise-ratio,the average co... |
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| Keywords: | differential Interferometry of Synthetic Aperture Radar permanent scatterers automatic detection signal-noise ratio |
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