利用复射线法分析腔体的散射场

利用基于几何光学和高斯波束法的复射线法分析了相对任意开口圆柱腔的后向散射场。该圆柱腔内部包含较复杂的中心锥，叶片等结构，计算了两种较复杂进气道模型的雷达截面，所得结果均与弹跳射线法结果进行了比较，二者吻合很好，该方法受计算机内存影响小，对电大腔体，复射线法精确高效。

Analysis of cavity scattering based on complex rays method

A technique based on the Geometric optics and Ganssian Beam is developed for analyzing the back scattering by relatively arbitrary open ended cavities containing complex interior terminations. The sum scattered field is expressed,then the RCS of two kind of inlet models are computed.Numerical results obtained by this method are compared with those for the shooting and bouncing method .It shows good agreement.Finally the superiority of this method is discussed.This method does not suffer from computer storage. The complex rays method is quite accurate for electrically large cavities and is much efficient.