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PSI技术在上海地表沉降监测中的应用 被引量:2

Surface Subsidence Monitoring in Shanghai with PSI Technique
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摘要 应用永久散射体雷达干涉(PSI)技术进行地表沉降监测研究,对PSI建模时采用的各相位分量的空间相关特性和沉降结果精度进行详细分析。试验选取覆盖上海地区的16幅高分辨率TerraSAR-X(TSX)SAR影像为数据源,进行PSI建模、形变提取和精度分析,并使用地面水准数据进行对比验证。结果表明,根据PS各相位分量的空间相关特性进行PS点的识别是合理的。与水准数据对比,两类年沉降速率结果具有很好的一致性,差异均值和标准偏差分别为1.6 mm/a和±4.6 mm/a,最小和最大差异量分别为0.198 7 mm/a和10.132 mm/a,证实了PSI技术在上海地区地表沉降监测的应用是有效和可靠的。
出处 《测绘通报》 CSCD 北大核心 2012年第12期54-58,共5页 Bulletin of Surveying and Mapping
基金 国家自然科学基金(41074005 40774004) 教育部新世纪优秀人才支持计划(NCET-08-0822)
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参考文献7

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二级参考文献15

  • 1WANG Chao, ZHANG Hong, LIU Zhi, CHENG Suozhong and LU Guonian(1. LARSIS, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China,2. Department of Geography, Nanjing Normal University, Nanjing 210097, China).Satellite SAR interferometric observations of displacements associated with urban subsidence in Suzhou, Eastern China[J].Progress in Natural Science:Materials International,2002,12(10):798-800. 被引量:13
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