基于InSAR地表形变监测的地下强爆炸参数反演  

Inversion of parameters for intense underground explosions using surface deformation monitoring with InSAR

作　　者：薛凡喜 王武 张磊[1] 于潇 徐翔云 田立杰 XUE Fanxi;WANG Wu;ZHANG Lei;YU Xiao;XU Xiangyun;TIAN Lijie(Institute of Defense Engineering,AMS,PLA,Beijing 100850,China;Department of Civil Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]军事科学院国防工程研究院,北京100850 [2]清华大学土木工程系,北京100084

出　　处：《地震工程学报》2025年第3期621-630,共10页China Earthquake Engineering Journal

基　　金：国家自然科学基金资助项目(12102476)。

摘　　要：地下强爆炸试验是各国发展、检验和评估战略武器性能的重要途经,试验相关参数对分析武器性能和维护国家安全具有重要意义。以某试验场为例,利用融合分布式目标的合成孔径雷达干涉测量(DS-InSAR)技术和1992—2001年共48景ERS-1/2数据,获取研究区地表形变场;以贝叶斯反演框架为基础,分别采用有限长椭球模型和点源复合位错模型(pCDM)对地下强爆炸相关参数展开研究,并对比分析两种模型的精度及可靠性。结果表明:DS-InSAR技术能够有效探测地下强爆炸试验引起的地表形变;单源或双源的有限长椭球模型和pCDM均能较好地拟合InSAR观测结果,相较而言,pCDM对地下强爆炸的拟合效果更佳。基于InSAR技术的地学模型参数反演能够为地下强爆炸试验相关参数研究提供一定的技术支持。Conducting intense underground explosion tests is crucial for countries to develop,test,and evaluate strategic weapons.The resulting parameters are essential for evaluating weapon capabilities and ensuring national security.In this study,the surface deformation of the target area was monitored using DS-InSAR technology,applying 48 scenes of ERS-1/2 data collected from 1992 to 2001.Then,the Bayesian inversion framework was employed,proving effective in determining the parameters of underground intense explosions using the finite prolate spheroid model and the point compound dislocation model(pCDM).Finally,the accuracy and reliability of both models were analyzed and compared.The results indicate that DS-InSAR technology could effectively detect surface deformation resulting from intense underground explosions.The single-and dual-source finite prolate spheroid models,as well as the pCDM,provided a good fit to the InSAR observations,with the latter offering a superior fit.The results also demonstrate that parameter inversion of geological models based on InSAR data can provide valuable technical support for the study of underground intense explosion tests.

关 键 词：地下强爆炸试验 DS-InSAR 贝叶斯反演 有限长椭球模型 pCDM 

分 类 号：P227[天文地球—大地测量学与测量工程]