飞行器座舱RCS可视化计算方法研究

The Radar Cross Section of Aircraft Cabin Visualization Calculative Method

根据分层媒质理论[1]和图形电磁学理论[2]，得到并验证了一种新的分析和计算座舱RCS的方法低RCS座舱罩表面的散射场利用图形电磁学计算方法（GRECO）求解，其中边缘效应利用增量长度ILDC方法估算；舱内结构散射分析，应用分层媒质理论得到介质舱罩反射系数和传输系数，同时采用能量分布调制和随机相位加权的方法计算舱内结构散射；

Based on the layered-media wave theory and Graphical Electromagnetics Thoory, a methed of analyzing andcalculating the Radar Cross Section (RCS) 0f aircraft cockpit targets is presented and verified. The cabinsur face scatteringfields are obtained by using Graphical Electromgnetic Computation (GRECTh), including cabin wedge scattering fields computed by ILDC methed. The reflectance coefficient and the traonsmittance mefficient are obtained by using the layered-mediawave theory. Then amplitude and phase weighing methed, called Energy Medulation and Random Phase Weighting methed,are used for calculating the structural scattering fields caused by the obects in the cabin. Numerical results fOr aircraft cabinsare provided at the end of this paper.