高分辨SAR相干系数图像的开采沉陷区提取Extraction of mining subsidence area based on coherence image of high resolution SAR
马威,马超,赵鹏飞,张舞燕
摘要(Abstract)：
针对煤矿区开采沉陷下沉迅速、地表变形大、容易形成低相干区的特点,该文采用神东矿区2012年1月至2012年12月RADARSAT-2 MF5多视精细波束模式图像,经相干性计算、对低相干区进行数字图像处理、人机交互解译等过程获取研究区内沉陷区的数量和规模。将基于InSAR相干系数图像提取的沉陷区与DInSAR结果进行叠加对比,空间位置能够很好地吻合,由此获得连续变化的开采沉陷区39处。实验表明:不需要复杂的干涉测量,仅使用相干系数图像也可以提取开采沉陷区,可以实现大范围、高强度开采活动造成的地表沉陷灾害的快速评估。
关键词(KeyWords)： 合成孔径雷达干涉测量;干涉相干系数图像;开采沉陷区;低相干区
基金项目(Foundation): 国家自然科学基金委员会与神华集团有限责任公司联合资助项目(培育项目U1261106)
作者(Author): 马威,马超,赵鹏飞,张舞燕
DOI: 10.16251/j.cnki.1009-2307.2018.05.020
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