摘要
针对地基SAR在变形监测工程应用中存在的雷达视线受扰而导致监测数据失真的问题,本文基于Matlab软件采用稳健的Lowess方法对地基SAR形变信号离群值进行滤波处理,削弱了雷达信号受扰所引入的误差,并将处理后的形变结果与高精度全站仪同名点监测结果进行对比分析。结果表明:基于Matlab的地基SAR形变信号滤波很好地修正了失真信号的影响,且地基SAR相较于高精度全站仪有着高精度、连续、直观、大范围等优势。
Aiming at the problem of monitoring data distortion caused by radar sight disturbance in the application of ground-based SAR in deformation monitoring engineering,this paper uses a robust Lowess method based on Matlab software for filtering the outliers of ground-based SAR deformation signal,weakens the error introduced by radar signal disturbance,and compares and analyzes the processed deformation result with the monitoring results of the homonymy points of the highprecision total station.The results show that the deformation signal filtering of ground-based SAR based on Matlab can well correct the influence of distortion signal,and ground-based SAR has the advantages of high precision,continuous,intuitive and large range compared with high-precision total station.
作者
马金玉
黄梦玲
Ma Jin-yu;Huang Meng-ling(Xinyang City Jianghuai Water Conservancy and Hydropower Engineering Construction Supervision Station,Xinyang 464000,Henan Province,China;Xinyang Water Conservancy Survey and Design Institute,Xinyang 464000,Henan Province,China)
出处
《科学与信息化》
2023年第18期34-37,共4页
Technology and Information
