【作者】 傅平； 刘学观； 郭辉萍；

【Author】 Fu ping,Liu Xueguan ,Guo Huiping (Suzhou University,Suzhou 215021)

【机构】 苏州大学；

【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信号。利用时域与频域的关系,换算得到频域反射系数,并以此作为测量值与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。本文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。更多还原

【Abstract】 As a metal-backed chiral media slab being illuminated normally by a transient electromagnetic pulse,the reflected signal is also a pulse.The reflection coefficients on frequency-domain are obtained by using the relationship between time-domain and frequency-domain.For the inversion of chiral media parameters,an object function is constructed with the reflection coefficients on theory and measurements.The chiral media parameters can be solved from optimizing the object function.The whole inversion procedure with numerical simulation is given in this paper,and several satisfactory results are obtained.This work provides a new approach for parameter inversion of chiral media.更多还原