| 合成孔径雷达在国土监测中的应用 |
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| 引用本文： | 刘琦,岳彩荣,高振宇,李宁,章皖秋.合成孔径雷达在国土监测中的应用[J].四川林勘设计,2019(2):82-84,88. |
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| 作者姓名： | 刘琦 岳彩荣 高振宇 李宁 章皖秋 |
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| 作者单位： | 天津市地籍管理中心;西南林业大学林学院 |
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| 基金项目： | 国家自然科学基金(31260156);德国DLR TanDEM-X Science Phase计划资助(XTI_VEGE6852) |
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| 摘 要： | 合成孔径雷达(SAR)具备微波极化和干涉特性,相比光学影像,对目标结构特征更为敏感,在监测地物方面具有一定优势。文章根据后向散射系数和干涉相干系数两个指标,对SAR影像拍摄的耕地、水体、森林、建筑物等常见地物特征进行分析归纳,以TanDEM-X在云南省勐腊县的一景数据为例,说明其在疑似建设用地图斑提取和地类图斑勾绘工作中的应用,证明SAR在国土监测中的有效性。
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| 关 键 词： | 合成孔径雷达 遥感监测 国土资源 |
Application of Interferometry SAR for Dynamic Monitoring of Land Resources |
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| LIU Qi,YUE Cai-rong,GAO Zhen-yu,LI Ning,ZHANG Wan-qiu.Application of Interferometry SAR for Dynamic Monitoring of Land Resources[J].Sichuan Forestry Exploration and Design,2019(2):82-84,88. |
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| Authors: | LIU Qi YUE Cai-rong GAO Zhen-yu LI Ning ZHANG Wan-qiu |
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| Institution: | (Tianjin Cadastral Management Center,Tianjin 300042 ,China;Southwest Forestry University,College of Forestry,Kunming 650224,China) |
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| Abstract: | SAR had characteristics of radar polarimetry and interferometry, which showed great potential in dynamic monitoring due to being sensitive to feature structure, compared with optical RS. This study selected backscattering and coherent coefficient as the indicators, analysed the characteristic of common scatters such as cultivated land, water, forest and constructions. According to experiments of Tan- DEM-X in Mengla county, Yunnan province, this study showed the ability to find suspected constructions and delineation features on the ground, while explaining effectiveness of SAR in dynamic monitoring of land resources. |
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| Keywords: | SAR Dynamic Monitoring Land Resources |
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