摘要
本文以美国空军 F-117A 隐身飞机为例,取其1/8缩比模型测量所有视线角和各不同频段上的 RCS。测量结果表明,在微波频率上,其鼻锥方向的 RCS 很小,而其它许多方向上的 RCS 升高10dB,甚至10dB 以上:在 VHF 频率上,各方向的 RCS 大于1m^2,类似于常规的喷气式飞机。
In this paper,the US Air Force F=117A is taken as an example.Its 1/8 ratio model has been used to measure the RCS at all aspect angles and different frequency bands.Measured results show clearly that the stealth airplane does have a very small RCS in the nose aspect at microwave frequency,but the RCS in many other aspects rise 10dB or more,and at VHF the RCS in all aspects are more than 1m^2,similar to a normal jet plane.
出处
《现代雷达》
CSCD
1992年第3期17-23,共7页
Modern Radar
关键词
隐身飞机
可探测性
雷达
stealth aircraft
ratio model
detectability
