| 基于非恒Q衰减模型探地雷达的回波仿真 |
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| 引用本文： | 何炜琨,苏志刚,吴仁彪,刘家学.基于非恒Q衰减模型探地雷达的回波仿真[J].现代雷达,2011,33(9):76-80. |
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| 作者姓名： | 何炜琨 苏志刚 吴仁彪 刘家学 |
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| 作者单位： | 1. 中国民航大学智能信号与图像处理天津市重点实验室, 天津300300;天津大学电信学院, 天津300072
2. 中国民航大学智能信号与图像处理天津市重点实验室,天津,300300 |
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| 基金项目： | 国家自然基金资助项目(60879019); 民航总局资助项目(MHRD0701) |
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| 摘 要： | 电磁波在地下介质层中的传播特性及回波仿真技术对于反演地下介质层结构具有十分重要的意义。文中研究了探地雷达信号在有耗介质层中传播的回波仿真问题,基于Debye色散模型定义介质层电磁参数,讨论电磁波在地下介质层中的非恒Q衰减特性和模拟回波信号,得到了探地雷达脉冲在层状介质中传播的回波信号模型和反射回波曲线。仿真结果与当前通用的探地雷达数据仿真软件GprMax进行对比,证明了该方法的有效性。
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| 关 键 词： | 探地雷达 有耗介质 传播衰减 品质因子 |
Simulation for GPR Echoes Based on Non-constant-Q Attenuation Model |
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| HE Wei-kun,SU Zhi-gang,WU Ren-biao,LIU Jia-xue.Simulation for GPR Echoes Based on Non-constant-Q Attenuation Model[J].Modern Radar,2011,33(9):76-80. |
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| Authors: | HE Wei-kun SU Zhi-gang WU Ren-biao LIU Jia-xue |
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| Affiliation: | HE Wei-kun1,2,SU Zhi-gang1,WU Ren-biao1,LIU Jia-xue1(1.Tianjin Key Lab for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China)(2.Electronic and Information Engineering Institute,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Electromagnetic wave propagation characteristic in the underground layer media and echoes simulation technique are important for the inversion of the structure underground.In this paper,the attenuation characteristic of ground penetrating radar(GPR) pulse propagated in the lossy media was studied.The echo simulation method based on the non-constant-Q attenuation model was proposed and the signal model of the GPR echoes and the simulated wave were established.The simulation results demonstrate the new method... |
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| Keywords: | ground penetrating radar lossy media propagation attenuation quality factor |
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