| 基于瞬态特性的手征媒质参数反演研究 |
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| 引用本文： | 蔡文锋,刘学观,郭辉萍. 基于瞬态特性的手征媒质参数反演研究[J]. 苏州大学学报(工科版), 2005, 25(6): 10-13 |
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| 作者姓名： | 蔡文锋 刘学观 郭辉萍 |
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| 作者单位： | 苏州大学电子信息学院,江苏,苏州,215021 |
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| 基金项目： | 电磁散射辐射国防科技重点实验室科研基金资助项目（编号51477010103.1W3001）. |
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| 摘 要： | 电磁脉冲垂直投射到金属衬底的手征媒质，其反射信号一定也是脉冲，利用时域与频域的关系，换算得到频域的反射系数，结合本文推导得到的反射系数理论值构造优化目标函数，对该目标函数的优化处理实现了手征媒质参数的反演。文中给出了全部反演过程并进行了计算机模拟，得到了比较理想的结果，为实现手征媒质参数的反演提供了一条新的途径。
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| 关 键 词： | 手征媒质 瞬态特性 参数反演 优化处理 |
| 文章编号： | 1673-047X（2005）06-0010-04 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-04-29 |
Inversion on Chiral Media Parameters with Transient Characteristics |
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| CAI Wen-feng,LIU Xue-guan,GUO Hui-ping. Inversion on Chiral Media Parameters with Transient Characteristics[J]. Journal of Suzhou University(Engineering Science Edition), 2005, 25(6): 10-13 |
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| Authors: | CAI Wen-feng LIU Xue-guan GUO Hui-ping |
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| Affiliation: | College of Electronics and Information Engineering, Soochow University, Suzhou 215021, China |
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| Abstract: | The reflected signals is a pulse with metal-backed chiral media slab illuminated by a normal transient electromagnetic pulse. Reflection coefficient on Frequency-Domain are calculated in terms of the relation between Time-Domain and Frequency-Domain, then, with the reflection coefficient of theory which is derived first in this paper, construct an object function. Chiral media parameters can be solved from the optimizing conditioner of object function. In this paper, the whole procedure of inversion is presented and the computer simulation gives a satisfactory result. This work provides a new approach for parameter inversion of chiral media. |
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| Keywords: | chiral media transient characteristics parameter inversion optimizing conditioner |
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