基于目标指示信息的末制导雷达最小角度搜索范围研究

Research on Minimal Search Angle of Terminal Guidance Radar Based on Target Indicator Information

为了减少敌方进行电子对抗的机会,要求末制导雷达在保证一次捕获概率的同时尽可能减小角度搜索范围。针对在探测平台提供目标位置、航向和航速信息的条件下,目标散布满足椭圆误差模型的特点,提出了适应导弹自控点散布和目标散布的最小角度搜索范围模型,并对模型进行了详细分析和求解。在不同的雷达探测距离下,以高亚声速反舰导弹为例进行了仿真计算。结果表明,相比于只提供目标位置信息的目标散布圆误差模型,最小角度搜索范围可减小50%以上。

In order to reduce chance disturbed by electronic counter measures（ ECM）,the terminal guidance radar of an anti-ship missile should capture the target in its first scan period,and the search angle should be as small as possible. On the basis of target position,vehicle and direction being supported,the ellipse distribution model of target dispersion error is proved. Then the relation of target and missile is established by supposing terminal dispersion error in the self-control phase as circular distribution. The model of minimal search angle caused by the radar open position is proposed by means of an analytic algorithm,and simulated at different radar detection range on conditions of high subsonic speeds. The results show that compared with target dispersion error as circular distribution,minimal search angle can be decreased by no less than 50%.