节点文献
探地雷达时域有限差分法正演模拟
THE APPLICATION OF THE FDTD METHOD TO GPR SIMULATION
【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。
【Abstract】 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.
【关键词】 探地雷达;
雷达波;
时域有限差分;
正演模拟;
【Key words】 radar wave; Finite-Difference Time-Domain; forward simulation;
【Key words】 radar wave; Finite-Difference Time-Domain; forward simulation;
- 【文献出处】 物探与化探 ,Geophysical and Geochemical Exploration , 编辑部邮箱 ,2006年03期
- 【分类号】P631
- 【被引频次】33
- 【下载频次】519