| 地基干涉雷达IBIS-S桥梁动态形变监测研究 |
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| 引用本文： | 徐亚明, 周校, 王鹏, 邢诚. GB-SAR构建永久散射体网改正气象扰动方法[J]. 武汉大学学报 ( 信息科学版), 2016, 41(8): 1007-1012. DOI: 10.13203/j.whugis20140507 |
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| 作者姓名： | 徐亚明 周校 王鹏 邢诚 |
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| 作者单位： | 1.武汉大学测绘学院, 湖北 武汉, 430079;2.精密工程与工业测量国家测绘地理信息局重点实验室, 湖北 武汉, 430079 |
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| 基金项目： | 国家自然科学基金（41274021，41301434）；2014国家测绘地理信息局基础测绘科技项目；精密工程与工业测量国家测绘地理信息局重点实验室开放基金重点项目（PF2015-1） |
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| 摘 要： | 气象扰动对地基合成孔径雷达干涉测量技术的测量精度影响较大，选取合适的气象改正方法关系到测量结果的精度和可靠性。分析了常用的地基合成孔径雷达气象改正模型及方法，提出了一种利用永久散射体（permanent scatterers, PS）气象改正网的全场景气象改正方法，并将该技术应用到施工期的高危边坡监测实验中。结果表明，该方法可有效削弱气象影响，提高测量精度，准确探测出高危边坡中的不稳定区域。通过与传统选点气象改正的改正结果和测量机器人测量结果的比较分析，证明该方法可有效应用于高危边坡变形监测中，在复杂环境下气象影响可控制在亚mm级。
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| 关 键 词： | 气象扰动 地基合成孔径雷达 精度 边坡监测 永久散射体(PS) |
| 收稿时间： | 2015-07-25 |
A Review of Ground-based SAR Interferometry for Deformation Measurement |
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| XU Yaming, ZHOU Xiao, WANG Peng, XING Cheng. A Method of Constructing Permanent Scatterers Network to Correct the Meteorological Disturbance by GB-SAR[J]. Geomatics and Information Science of Wuhan University, 2016, 41(8): 1007-1012. DOI: 10.13203/j.whugis20140507 |
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| Authors: | XU Yaming ZHOU Xiao WANG Peng XING Cheng |
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| Affiliation: | 1.School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;2.Key Laboratory of Precise Engineering and Industry Surveying of National Administration of Surveying, Mapping and Geoinformation, Wuhan 430079, China |
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| Abstract: | Atmospheric disturbance has a great influence on the measurement accuracy of Ground-Based SAR; thus the selection of a suitable atmospheric correction method is related to the reliability and accuracy of measurement results. A whole scene atmospheric correction method using the PS atmospheric correction network is proposed, and applied in a experiment monitoring a high-risk slope under construction. The effectiveness of the meteorological correction method proposed in this paper was verified by a comparison with the results of conventional atmospheric correction method and surveying robot. |
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| Keywords: | atmospheric disturbance ground-based SAR accuracy slope monitoring permanent scatterers |
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