基于可控强散射目标的地基SAR监测精度验证与分析
Verification and analysis of ground-based synthetic aperture radar monitoring accuracy based on controllable strong scattering targets
候杉山 1杨晓琳 1张浩 2任贵文1
作者信息
- 1. 中国安全生产科学研究院,北京 100012
- 2. 中国安全生产科学研究院,北京 100012;江西省应急管理科学研究院,江西 南昌 330103
- 折叠
摘要
地基SAR(synthetic aperture radar)能够对监测区域实现高精度的连续形变监测,在矿山安全生产和滑坡地质灾害救援领域中具有重要意义.为研究其形变监测能力与精度,采用一套高精度可控强散射目标角反射器标定装置作为验证目标,布设在某金属露天矿的远距离真实边坡上,控制装置上的雷达角反射器完成毫米级的高精度位移;整个位移过程采用中国安全生产科学研究院自研的S-SAR边坡雷达监测系统进行监测,通过雷达形变监测结果与高精度装置结果进行分析比对.实验结果表明,在金属露天矿的远距离监测场景下,S-SAR边坡雷达监测系统获取的位移变形趋势与实际监测目标位移趋势吻合,误差均值在0.1 mm之内,有效验证了该系统用于边坡形变监测的可行性以及亚毫米级的监测精度.
Abstract
Synthetic aperture radar can realize continuous deformation monitoring with high precision in the monitoring area,which is of great significance in the field of mine safety production and landslide geological disaster rescue.In order to study its deformation monitoring ability and accuracy,a set of high-precision control-lable high-scattering target Angle reflector calibration device was adopted as the verification target,which was deployed on the remote real slope of a metal open-pit mine.The whole displacement process was monitored by S-SAR slope radar monitoring system developed by China Academy of Safety Science and Technology.The results of radar deformation monitoring were analyzed and compared with those of high-precision device.The experimental results show that,in the remote monitoring scenario of metal open-pit mine,the displacement and deformation trend obtained by S-SAR slope radar monitoring system is consistent with the actual monitoring target displacement trend,and the mean error is within 0.1mm,which effectively verifies the feasibility of the system for slope deforma-tion monitoring and the sub-millimeter monitoring accuracy.
关键词
露天金属矿/变形监测/地基干涉雷达/精度验证/角反射器/大气校正Key words
open-pit metal mine/deformation monitoring/synthetic aperture radar/angular verification/corner reflector/atmospheric correction引用本文复制引用
基金项目
中国安全生产科学研究院基本科研业务费专项资金项目(2023JBKY04)
出版年
2024
NETL
NSTL
万方数据