增强飞行器角闪烁的方法──一种新的飞行器隐身技术

A NEW STEALTH TECHNIQUE FOR VEHICLES BASED ON THE ENHANCEMENT OF ANGULAR GLINT

本文建立了任意截面缝隙加载理想导体柱电磁散射的一般数学模型，获得对缩比模型的理论计算与测量数据较好的一致性。在谐振频率区内对实际模型测量分析表明，利用多背接腔缝隙加载，可以实现较大姿态角范围内后向雷达散射戴面的减缩，并同时产生目标角闪烁线偏差的强烈增强，这是一种新的飞行器隐身技术措施。

A general 2-D problem of electromagnetic scattering from a multiple cavitybacked longitudinally loaded slotted perfectly conducting cylinder with arbitrary cross section is formulated. The formulation is used to account for the scattered field from the scale models,for which,a series of experiments has been conducted in an anechoic chamber. Excellent agreement between theory and experiment is obtained. The analysis of the experimental results near resonant frequency shows that the reduction of backscattering radar cross section over wide aspect angles,and the obvious enhancement of target angular glint (linear deviation) can be achieved by the impedance loading such as multiple cavity-backedslots,which realizes a new stealth technique for vehicles.