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.

• 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。