| 时域多分辨率分析在色散介质中的应用 |
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| 引用本文： | 孙征, 张祥, 石立华, 谷红涛, 王真. 时域多分辨率分析在色散介质中的应用[J]. 电波科学学报, 2014, 29(3): 534-538. doi: 10.13443/j.cjors.2013061101 |
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| 作者姓名： | 孙征 张祥 石立华 谷红涛 王真 |
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| 作者单位： | 1.解放军理工大学 电磁环境效应与光电工程国家级重点实验室,江苏 南京 210007;2.北京军区通信网络技术管理中心,北京 100041;3. 中国人民解放军62115部队,湖北 武汉 430010 |
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| 基金项目： | 国家自然科学基金资助项目(51077133) |
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| 摘 要： | 将基于Daubechies尺度函数的时域多分辨率分析(Muti-Resolution Time-Domain ，MRTD)方法应用到色散介质的分析中.采用梯形递归卷积（Trapezoidal Recursive Convolution ，TRC）方法，推导出了适合Drude-Lorentz模型的差分方程.通过对一维等离子体和金属铝板反射系数的仿真分析，证明了该方法的正确性和有效性.与基于辅助方程（Auxiliary Difference Equation ，ADE）的MRTD方法相比，该方法可以有效地节约内存和计算时间，并且获得更高的计算精度.
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| 关 键 词： | 梯形循环卷积 时域多分辨率分析 色散介质 |
| 收稿时间： | 2013-06-11 |
Application of multiresolution time domain scheme in dispersive media |
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| SUN Zheng, ZHANG Xiang, SHI Lihua, GU Hongtao, WANG Zhen. Application of multiresolution time domain scheme in dispersive media[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2014, 29(3): 534-538. doi: 10.13443/j.cjors.2013061101 |
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| Authors: | SUN Zheng ZHANG Xiang SHI Lihua GU Hongtao WANG Zhen |
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| Affiliation: | National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, PLA University of Science and Technology, Nanjing Jiangsu 210007, China;2.Management Center on Communication and Network Technology of Beijing Military Region, Beijing 100041, China;3.62115 Troop of PLA, Wuhan Hubei 430010, China |
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| Abstract: | The trapezoidal recursive convolution (TRC) method is incorporated into the muti-resolution time-domain (MRTD) to analyze the dispersive media. The formulations for the Drude-Lorentz media are derived and applied to calculate the reflection coefficients of plasma and aluminium. The numerical results show that, compared with the auxiliary difference equation (ADE) based MRTD, the proposed scheme can obtain more accurate results, while consumes less memory and CPU time. |
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| Keywords: | trapezoidal recursive convolution (TRC) mutiresolution time-domain (MRTD) dispersive media |
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