MBPE技术快速分析导体散射的频空二维特性

Model based parameter estimation for a fast analysis of conductor scattering characteristics in both spatial and frequency domains

将频域基于模型参数估计(MBPE)技术和频空双内插MBPE技术结合,提出了一种新的频空二维MBPE技术,利用了频率、角度和频率导数信息,克服了双内插MBPE技术难以寻找合适插值点的缺点.并将该方法与矩量法结合对任意形状复杂多导体系统的大角度宽频带雷达散射截面的二维特性进行了快速估计,计算效率显著提高.数值结果表明了该方法的有效性.

This paper presents a new kind of Model Based Parameter Estimation (MBPE) for spatial and frequency analysis, which connects MBPE in frequency domain with the interpolation in spatial and frequency domains using MBPE. By using both angle samples, frequency samples and derivative information of frequency, this method overcomes the difficulty of sampling. It is used to estimate quickly the RCS of the complex system of several arbitrary shape perfect conductors in both spatial domain and frequency domain. Without computing the impedance matrix repeatedly, the computation efficiency is increased dramatically. A numerical experiment is given to show the validity of the method.