幅相误差对机载火控雷达抗干扰性能的影响
Impact of Amplitude and Phase Errors on Anti-Jamming Performance of Airborne Fire Control Radar
李文君 1张部生 1刘道伟 1肖金保1
作者信息
- 1. 中国人民解放军63893 部队 河南 洛阳 471000
- 折叠
摘要
本文通过建立模型,区分机载火控雷达面临的三种典型干扰情形,分析了幅相误差对火控雷达抗有源干扰的能力的影响.仿真结果表明干扰从非零点副瓣和主瓣进入时,幅相误差主要影响副瓣杂波区,对主瓣杂波区影响不大,抗干扰性能随幅相误差增加而下降.而当干扰从副瓣零点进入时,会造成主瓣分裂,存在幅相误差时,抗干扰性能反而增加.
Abstract
This paper establishes a model to distinguish three typical jamming scenarios faced by airborne fire con-trol radar,based on which the impact of amplitude and phase errors on the ability of airborne fire control radar to resist active jamming is analyzed.The simulation results show that amplitude and phase errors primarily affect the sidelobe clutter region,with little impact on the main lobe clutter region when the jamming signals enter through non-null point in sidelobe or through main lobe.In this case,the anti-jamming performance of the radar decreases with increasing amplitude and phase errors.In addition,when the jamming signals enter through sidelobe null,it causes the main lobe splitting,and the presence of amplitude and phase errors actually improves the anti-jamming performance of the radar.
关键词
幅相误差/主瓣干扰/副瓣干扰/改善因子Key words
amplitude and phase errors/main lobe jamming/sidelobe jamming/improvement factor引用本文复制引用
出版年
2024
NETL
NSTL
万方数据