测绘科学技术学报2025，Vol.41Issue(1)：42-48,7.DOI:10.3969/j.issn.1673-6338.2025.01.007
POT技术矿区形变监测仿真与适用性分析
Simulation and Applicability Analysis of POT Technology for Monitoring Mine Deformation
摘要
Abstract
POT(pixel offset tracking)technology is one of the effective methods for large-scale deformation monito-ring in mining areas,but its accuracy is sensitive to the size of image pixel and the size of the cross-correlation window.To accurately analyze the influence mechanism of the two factors on the POT technology,the surface de-formations of the mining areas with different deformation levels are simulated by using the probability integration method,and three different pixel sizes of SAR images are simulated by utilizing the surface deformations and the system parameters of ALOS-PALSAR,Radarsat-2 and TerraSAR-X satellites.The POT monitoring is performed on the simulated SAR images under cross-correlation windows of different sizes,and the monitoring accuracy is com-pared with the simulation deformation.Experimental results show that the accuracy of POT deformation monitoring will decrease if the cross-correlation window is too small,and the precision of POT deformation monitoring will de-crease if the cross-correlation window is too large.The optimal interval of the cross-correlation window is[33,65].The smaller the pixel size of the SAR image is,the higher the accuracy of POT deformation monitoring will be.关键词
合成孔径雷达/像素偏移量追踪/互相关窗口/像元尺寸/矿区形变Key words
SAR/pixel offset tracking/cross-correlation window/pixel size/mining area deformation分类
测绘与仪器引用本文复制引用
刘肖兵,常云浩..POT技术矿区形变监测仿真与适用性分析[J].测绘科学技术学报,2025,41(1):42-48,7.基金项目
河南省重点研发推广专项(202102310014) （202102310014）
河南省高等学校重点科研项目(20A420001) （20A420001）
河南省科技攻关项目(242102321173). （242102321173）
