电波科学学报2011，Vol.26Issue(3)：515-520,6.
时域物理光学法分析均匀介质目标的瞬态散射
Transient scattering analysis of electrically large homogeneous dielectric targets by using TDPO method
摘要
Abstract
The dielectric time-domain physical optics （TDPO） is proposed to calcu- late the time-domain scattered field of electrically large homogeneous dielectric tar- gets. The Fresnel reflection coefficients are applied to the frequency-domain physi- cal optics （PO） approximation, and formulae of the dielectric TDPO are derived through the inverse Fourier transform. Thus the conventional TDPO is extended to analyze the homogeneous dielectric objects. The technique for shadowing is dis- cussed when the target is modeled with triangular facets. The transient scattering and wideband radar cross section （RCS） of several examples are given, of which re- sults agree well with those obtained by other methods, which demonstrates the va- lidity of the dielectric TDPO.关键词
均匀介质目标/时域物理光学法/瞬态散射/宽带雷达散射截面Key words
homogeneous dielectric objects/time domain physical optics （TDPO）/transient scattering/wideband radar cross section （RCS）分类
信息技术与安全科学引用本文复制引用
关莹,龚书喜,张帅,洪涛..时域物理光学法分析均匀介质目标的瞬态散射[J].电波科学学报,2011,26(3):515-520,6.基金项目
国家自然科学基金 （）
