摘要
本文采用复射线技术的原理和方法,通过场的高斯波束拟合,使这种理论能够用于进气道之类的大口径凹形腔体的雷达截面(RCS)特性分析。本文以弯曲的蛇形进气道为例,进行了RCS特性分析计算,并将计算值与测试值比较。结果表明,这种方法是一种比较准确而又十分有效的RCS预估方法。
The elementary principle and method of complex ray have been used for RCS analysis of a large aperture concave hollow target, such as an engine intake by wave expansion with a set of Gaussian beams. In this paper, a curved hollow duct as a model of an engine intake is calculated. The effectiveness and accuracy of the method can be proved from the comparison of the calculation with the measured results.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1990年第6期B276-B280,共5页
Acta Aeronautica et Astronautica Sinica
基金
国家教委博士点专项科研基金
高校重点学科发展基金
关键词
进气道
雷达截面
复射线理论
radar cross section (RCS), complex ray theory, wave expansion.
