大型水利工程的变形监测问题一直是变形观测中的热点问题,从地基合成孔径雷达测量原理以及IBIS系统特点出发,对比传统监测方法说明GBInSAR(Ground-Based Interferometric Synthetic Aperture Radar)技术在大坝变形监测中的优势,分析了大气扰动效应在观测中所造成的影响,结合实验数据提出地基InSAR(Interferometric Synthetic Aperture Radar)去除大气误差的技术方法。通过实例说明变形监测系统IBIS-L在大坝变形监测中具有广泛的应用前景。
Abstract
Deformation monitoring for large-scale hydropower projects has always been a hot issue in the field of deformation monitoring. According to the principle of ground-based synthetic aperture radar measurement and the characteristics of IBIS system, we expounded the advantages of the GBInSAR(Ground-Based Interferometric Synthetic Aperture Radar) technology in dam deformation monitoring compared with traditional monitoring methods. We also analyzed the influence of atmospheric disturbance effect on the observation, and proposed technical method InSAR(Interferometric Synthetic Aperture Radar) to remove the atmospheric errors based on experimental data. Engineering practice suggests that IBIS-L deformation monitoring system has prospect of wide application in dam deformation monitoring.
关键词
变形监测系统 /
GBInSAR /
大气扰动效应
Key words
deformation monitoring, GBInSAR /
atmospheric disturbance effect
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参考文献
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基金
国家自然科学基金(41174002);湖南省重点实验室开放研究基金(PKLHD201311)
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