| 基于SRTM数据的二轨D-InSAR监测城市地表沉降研究 |
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| 引用本文： | 张长书,朱建军,胡俊,王兴旺.基于SRTM数据的二轨D-InSAR监测城市地表沉降研究[J].测绘科学,2009,34(2). |
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| 作者姓名： | 张长书 朱建军 胡俊 王兴旺 |
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| 作者单位： | 中南大学信息物理工程学院,长沙,410083 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，空间信息集成与3S工程应用北京市重点实验室(北京大学)开放基金 |
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| 摘 要： | 合成孔径雷达差分干涉测量技术是新近发展起来的用于监测大范围地表形变的新技术,具有精度高、监测范围广等特点。本文首先深入分析了D-InSAR技术的基本原理,然后通过实验成功获取了上海市中心城区相隔7个月的地面沉降结果,通过与常规方法获取的沉降图的对比,发现二者具有高度的一致性,从而证明了利用D-InSAR技术监测城市地面沉降具有良好的应用前景。
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| 关 键 词： | 地面沉降 合成孔径雷达干涉测量 合成孔径雷达差分干涉测量 |
Study on two pass D-InSAR using SRTM data for urban land subsidence measurement |
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| ZHANG Chang-shu,ZHU Jian-jun,HU Jun,WANG Xing-wang.Study on two pass D-InSAR using SRTM data for urban land subsidence measurement[J].Science of Surveying and Mapping,2009,34(2). |
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| Authors: | ZHANG Chang-shu ZHU Jian-jun HU Jun WANG Xing-wang |
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| Abstract: | Differential Synthetic Aperture Radar interferometry(D-InSAR) is a newly developed technique for monitoring large-scale ground deformation with some prominent advantages such as high accuracy and pantoscopic view. This paper firstly gives an introduction to the principle of D-InSAR. Then, the ground subsidence from1992.9 to 1993.4 over center area of Shanghai has been successfully detected using D-InSAR technique. Compared with the ground-based measurements, the results are viable and reliable. It also proved that the D-InSAR technique has a good prospect in urban land subsidence monitoring field in the future. |
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| Keywords: | land subsidence InSAR D-InSAR |
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