| 用PLRC-FDTD法计算微波在激光等离子体中的反射和透射系数 |
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| 引用本文： | 吴莹,倪晓武,陈建平.用PLRC-FDTD法计算微波在激光等离子体中的反射和透射系数[J].南京理工大学学报(自然科学版),2010,34(2). |
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| 作者姓名： | 吴莹 倪晓武 陈建平 |
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| 作者单位： | 1. 南京理工大学,理学院,江苏,南京210094
2. 北京航空工程技术研究中心,北京,100076 |
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| 摘 要： | 用分段线性递归卷积时域有限差分(PLRC-FDTD)数值方法,研究了激光等离子体对微波传输特性的影响。应用该方法计算了微波的反射和透射系数。结果表明:对于均匀等离子体,等离子体频率越大,反射系数越大,透射系数越小;反射系数几乎为0 dB的带宽随等离子体频率的增加而增加;电子碰撞频率越高,反射系数越小,透射系数越大;非均匀等离子体不利于强反射的实现。研究结果为激光等离子体隐身技术提供了理论支持。
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| 关 键 词： | 分段线性递归卷积 时域有限差分 激光等离子体 微波 |
PLRC-FDTD Simulation of Microwave Reflection and Transmission Coefficients in Laser-induced-plasma |
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| WU Ying,NI Xiao-wu,CHEN Jian-ping.PLRC-FDTD Simulation of Microwave Reflection and Transmission Coefficients in Laser-induced-plasma[J].Journal of Nanjing University of Science and Technology(Nature Science),2010,34(2). |
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| Authors: | WU Ying NI Xiao-wu CHEN Jian-ping |
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| Institution: | 1.School of Sciences/a>;NUST/a>;Nanjing 210094/a>;China/a>;2.Beijing Aeronautical Technology Research Center/a>;Beijing 100076/a>;China |
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| Abstract: | The effect of laser-induced-plasma on microwave transmission characteristic is studied using piecewise linear recursive convolution-finite difference time domain(PLRC-FDTD).The microwave reflection and transmission coefficients are calculated.The results show that: with the increase of the plasma frequency,the reflection coefficient increases while the transmission coefficient decreases,and the bandwidth of the reflection coefficient at 0 dB increases with the increase of the plasma frequency.The increasing... |
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| Keywords: | piecewise linear recursive convolution finite difference time domain laser-induced-plasma microwaves |
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