探地雷达时域有限差分法正演模拟

英文篇名：THE APPLICATION OF THE FDTD METHOD TO GPR SIMULATION
中文刊名：物探与化探
英文刊名：Geophysical and Geochemical Exploration
作者：薛桂霞 ; 王鹏
英文作者：XUE Gui-xia~1 ; WANG Peng~2(1.College of Civil Engineering and City Construction ; Jiujiang University ; Jiujiang 332005 ; China ; 2.China University of Geosciences ; Wuhan 430074 ; China)
中文关键词：探地雷达 ; 雷达波 ; 时域有限差分 ; 正演模拟
英文关键词：radar wave ; Finite-Difference Time-Domain ; forward simulation
出版日期：2006-06-30
机构：九江学院土木工程与城市建设学院,中国地质大学江西九江332005,湖北武汉430074
年：2006
期：03
出版单位：物探与化探

摘要

在以往雷达波的正演模拟中,借鉴地震波中成熟的正演模拟方法,均采用模拟声波方程的方法,精度不够高。因此从麦克思韦方程组出发,采用目前电磁场理论中最常用的时域有限差分法,对探地雷达进行了正演模拟。为了进一步说明其正确性,对正演模拟的结果又进行了偏移处理,从结果看出该方法的正确性及可行性。
The sound wave equation simulation method has been traditionally used in forward simulation of GPR.Nevertheless,as the radar wave is a kind of electromagnetic wave and the spread of the wave accords with Maxwell equation,the result of simulation is not precise enough.To solve this problem,the authors adopted the finite difference time domain method to perform simulation on the basis of Maxwell equation.In addition,the migration processing was conducted for the simulation result.It is found out that this method is correct and feasible.

引文

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