摘要
常规反舰导弹雷达导引头一般采取掠海飞行弹道,此时海面后向散射系数很小,距离折叠因素影响很小;对于高弹道飞行条件下时,需要考虑距离折叠因素对雷达导引头检测性能影响,本文通过对海面杂波进行距离-角度剖分,进而把杂波能量映射到距离-多普勒单元内。仿真结果显示,当考虑距离折叠因素以后,海杂波将会提高约2d B(相对于不考虑距离折叠情形),对作用距离估计影响可达12%。
Since conventional anti - ship missile radar seeker utilizes sea - skimming flight trajectory, the back scatter- ing coefficient of sea surface is very small, and effect of range ambiguity factor is also very small at this time ; it is re- quired to take effect of range ambiguity factor on detectability radar seeker in high trajectory flight condition into consid- eration. The method of mapping clutter energy to range - Doppler bin by cutting clutter on sea surface in range - angle is presented. The simulation result shows that the effect of sea clutter will increase by 2dB while taking range ambiguity factor into consideration （relative to without taking range ambiguity status into consideration）, the evaluated effect on operational range may be up to 12%.
作者
黄新松
张江华
Huang Xinsong Zhang Jianghua(Miltary Representative Office of Navy Stationed in Nanchang zone, Nanchang Xi＇ an Electronic Engineering Research Institute, Xi＇ an 710100)
出处
《火控雷达技术》
2016年第4期27-30,共4页
Fire Control Radar Technology
关键词
电磁环境
统计
分析
radar seeker
range ambiguity
sea clutter
