东南大学学报（英文版）2001，Vol.17Issue(2)：18-21,4.
基于AWE技术的RCS 角度和频率同时外推
Simultaneous Extrapolation of RCS in Both Angular and Frequency Domains Based on AWE Technique
摘要
Abstract
The radar cross section (RCS) of a target is dependent on frequency as well as observation angle. The method of moments (MOM) in conjunction with the asymptotic waveform evaluation (AWE) technique is applied to predict the mono-static RCS of an arbitrarily shaped two-dimensional cylinder in both frequency and angular domains. The electric field integral equation (EFIE) is solved using MOM to obtain the equivalent current on the cylinder. In the AWE technique, the equivalent current at a given frequency and angle is expanded in the desired frequency and angle band in a binomial Taylor's series. The binomial Taylor's series coefficients are then matched via the Pade approximation to a rational function. Using the rational function, the current is obtained at any frequency and angle within the interesting frequency and angular range, which is in turn used to calculate RCS of the cylinder. This method for extrapolation of RCS has at least two significant advantages: one is that RCS analytical formulae are obtained and the other is it can decrease the amount of time required for modeling problems with large computational domains.关键词
矩量法/渐近波形估计技术/外推/雷达散射截面分类
数理科学引用本文复制引用
童创明,洪伟,李皓..基于AWE技术的RCS 角度和频率同时外推[J].东南大学学报（英文版）,2001,17(2):18-21,4.
