基于多通道雷达的对侦察接收机截获距离压制设计

低截获概率(LPI)雷达为了达到低截获的目的,雷达通常会采取很多措施,包括可变的重频,复杂的脉内调制,甚至于载频捷变等等,但是,从根本上来说,这些措施只是增加了侦察机的分选识别难度,间接地降低截获概率,真正想要获得很好的低截获概率,通常需要雷达控制探测距离。在LPI雷达作用距离不变的条件下,采用多通道的设计方法,根据灵敏度的计算给出了获得较大安全探测距离的方法,从而压制侦察接收机的截获距离。

A Design of Intercept Range Suppression of Reconnaissance Based on Multi-Channel Radar

In order to attain low probability of intercept (LPI),some measures including alterable PRF,complicated intra-pulse modulation and frequency agility are adopted in LPI radar. But all of the foregoing methods only increase the sorting and recognition difficulty for reconnaissance receiver,and so decrease the decrease. For getting better performance of LPI,the radar detection range would be controlled. On the condition of LPI radar detection invariable range,multi-channel design is proposed in this paper. The safe detection range of radar is got by sensitivity calculation,and so the detection range of reconnaissance receiver is suppressed.