电波科学学报2001，Vol.16Issue(1)：72-75,4.
渐近波形估计技术用于介质柱宽角度RCS的计算
Fast calculation of wide angle mono-static RCS of dielectriccylinders based on asymptotic wave evaluation technique
童创明 1洪伟2
作者信息
- 1. 东南大学 无线电工程系 毫米波国家重点实验室，江苏 南京 210096
- 2. 空军工程大学导弹学院，陕西 三原 713800
- 折叠
摘要
Abstract
The method of moments (MOM) in conjunction with the asymptoticwaveform evaluation (AWE) technique is applied to predict the mono-static radar cross section (RCS) pattern of an arbitrarily shaped two-dimensional dielectric cylinder. The electric field integral equation (EFIE) of a dielectric cylinder irradiated at a given direction by radar electromagnetic (EM) wave was solved using MOM to obtain the polarization current of the dielectric cylinder. In the AWE technique, the polarization current at a given angle was expanded in the desired angular band in a Taylor's series. The Taylor's series coefficients were then matched via the Pade approximation to a rational function. Using the rational function, the polarization current is obtained at any angle within the angular range, which is in turn used to calculate RCS of the 2-D dielectric cylinder. It is observed that AWE could result in considerable CPU time saving.关键词
矩量法/渐近波形估计技术/雷达散射截面/介质柱分类
数理科学引用本文复制引用
童创明,洪伟..渐近波形估计技术用于介质柱宽角度RCS的计算[J].电波科学学报,2001,16(1):72-75,4.
