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建立了箔条云对飞机隐身特性的影响分析与计算方法。考虑的对抗情况是突防方用一架飞机播撒箔条偶极子云 ,作战飞机以该箔条云带为掩护进行突防或调动。通过算例计算了箔条干扰及目标 RCS对飞行器隐身性能的影响。结论是 :在每千米突防路径上抛撒 60 0 0 0根数量的箔条就可以极大地提高飞行器的隐身能力 ,使得 RCS小于 1 0 0 m2 的目标难于被一般雷达探测到。即使雷达对于箔条杂波中可见度有 30 d B的改善 ,在箔条干扰下对目标的检测性能仍然不如在杂波和噪声条件下。应当指出 ,虽然计算结果表明箔条具有很好的干扰效果 ,但其应用应考虑到战场战术环境、天气条件等外界因素的限制和影响。
The influence of the chaff cloud on the stealth characteristics of aircraft is analyzed and calculated. Consider the confrontation situation is the sudden Fang Fang use an aircraft to spread chaff dipole clouds, combat aircraft to the chaff cloud cover as a shield to prevent or mobilize. The influences of chaff jamming and target RCS on the stealth performance of the aircraft are calculated by an example. The conclusion is that throwing 60000 chaff per kilometer of sudden penetration path can greatly improve the stealth of the aircraft so that the target of RCS less than 100 m2 is hard to be detected by general radar. Even if the radar improves the visibility of chaff clutter for 30 d B, the detection performance of the target under chaff interference is still not as good as clutter and noise. It should be noted that although the calculation results show that chaff has a good interference effect, its application should take into account the limitations and impacts of external factors such as battlefield tactical environment and weather conditions.