| 时间序列InSAR监测地表形变 |
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| 引用本文： | 郭颖平,杨进生,赵学亮.时间序列InSAR监测地表形变[J].测绘科学,2017,42(5). |
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| 作者姓名： | 郭颖平 杨进生 赵学亮 |
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| 作者单位： | 中国地质调查局 水文地质环境地质调查中心,河北 保定,071001 |
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| 摘 要： | 针对相干点目标的时间序列,提出了地表形变InSAR技术监测方法,该方法适用于小数据集分析。并采用郑州地区2007年1月到2010年4月期间的8景ALOS PALSAR数据进行验证分析。研究表明,识别的相干点目标具有大的干涉相干值和小的振幅离差,在时间序列中具有可靠的相位。从误差分析和与ENVISAT PSInSAR结果对比分析表明,该文求得的形变速率标准差在0.34mm/a和5.56mm/a之间,表明提出方法是可靠的。
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| 关 键 词： | 地表形变 差分干涉测量 永久散射体干涉测量 相干目标点 小基线集技术 |
Surface deformation detected by time-series InSAR |
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| GUO Yingping,YANG Jinsheng,ZHAO Xueliang.Surface deformation detected by time-series InSAR[J].Science of Surveying and Mapping,2017,42(5). |
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| Authors: | GUO Yingping YANG Jinsheng ZHAO Xueliang |
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| Abstract: | A time-series InSAR method is proposed to monitor the ground motion,which is suitable for small SAR data.The algorithm are tested and validated using 8 ALOS PALSAR SAR images over Zhengzhou urban area during 2007-2010.The identified coherent scatterers not only have high interferometric coherence,but also have small amplitude diversion index,which indicates maintain stable phase in the time series.Line-of-sight displacement estimation errors are between 0.34 mm/y and 5.56 mm/y based on error analysis and comparing with PSInSAR result,which demonstrates that the proposed algorithm is reliable. |
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| Keywords: | ground deformation differential interferometry persistent scatterer interferometry (PSInSAR) coherent scatterer small baseline method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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