| 无载频脉冲探地雷达性能分析及其FD—TD法数值模拟计算 |
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| 引用本文： | 方广有,汪文秉.无载频脉冲探地雷达性能分析及其FD—TD法数值模拟计算[J].电波科学学报,1997,12(1):44-50. |
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| 作者姓名： | 方广有 汪文秉 |
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| 作者单位： | [1]中国电波传播研究所 [2]西安交通大学 |
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| 摘 要： | 探测深度和分辩率是探地雷达的两项重要指标。本文分别对无载频脉冲探地雷达的探测深度和分辩率进行了分析，指出了影响雷达探测深度和分辩率的因素，并利用２。５维时时有限差分方法对雷达的探测性能进行了数值模拟计算，给出了地下单体目标和多体目标的回波信号电平图，并将部分计算结果与实验测试结果进行了对比，二者具有好的一致性。
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| 关 键 词： | 地下目标探测 探测雷达 目标识别雷达 |
Study about the Properties of a Carrier-Free Pulse Ground Penetrating Radar(GPR) and Their Numerical Simulation by 2. 5D FD-TD Method |
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| Fang Guangyou, Zhang Zhongzhi.Study about the Properties of a Carrier-Free Pulse Ground Penetrating Radar(GPR) and Their Numerical Simulation by 2. 5D FD-TD Method[J].Chinese Journal of Radio Science,1997,12(1):44-50. |
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| Authors: | Fang Guangyou Zhang Zhongzhi |
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| Abstract: | The maximum detection depth and the minimum resolution are two important factors of a Ground Penetrating Radar (GPR). Tbe detectable depths and resolution are firstly analysed for the cfor-free GPR spotems. The dominant parameters influendng the properties of a GPR system are studied. The pseudo-color pictures of different buried objects are calculated by 2. 5 Dimension Finite-Difference Time - Domain (2. 5D- FDTD) method in details. The comparsion between the result calculated by 2. 5D-FDTD method and the one by our GPR sysem is made, and good agreement is obtained. |
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| Keywords: | Ground Penetrating Radar Carrier-Free Pulse Underground Objects Detection Finite-Difference Time-Domain Method |
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