圆弧合成孔径雷达(ArcSAR)是一种新兴的地基SAR,相比直线扫描的地基SAR 具有更大的成像视场,在地灾监测领域有广泛的应用前景。文中介绍了Online SAR 地质灾害监测和预警系统关键技术,通过模拟实验测试了系统的监测精度,对系统在露天矿山边坡监测等方面的应用效果进行了阐述。结果表明:系统形变监测精度优于0.1mm,能够全天时、全天候、远距离、高精度地对大范围的监测区域实施连续监测,满足矿山高陡边坡地质灾害远程在线监测的要求。

Ground-based arc-scanning synthetic aperture radar (ArcSAR) is a new ground-based SAR, which has a larger imaging field of view than linear-scan ground-based SAR, and has a wide range of applications in the field of ground disaster monitoring prospect. The paper introduces the key technology of Online SAR geological disaster monitoring and early warning system independently developed by China Nonferrous Metals Changsha Survey and Design Research Institute Co. , Ltd. The monitoring accuracy of the system is tested through simulation experiments, and the application effect of the system in open-pit mine slope monitoring,etc. Explained. The results show that the system deformation monitoring accuracy is better than 0. 1 mm, and it can continuously monitor a wide range of monitoring areas at all-time, all-weather, long-distance, and high-precision, meeting the requirements of remote online monitoring of geological disasters on high and steep slopes in mines.

TN959

国家自然科学基金资助项目(41674005);湖南省重点研发计划(2021SK2048)