摘要:目标指示信息延迟是影响导弹精确打击的关键因素之一。在分析目标指示信息延迟和导弹自控终点误差形式的基础上，根据目标点和导弹自控终点的位置关系，建立了反舰导弹末制导雷达最小扇面角计算模型。通过仿真计算，得出了不同延迟时间、目标参数、导弹航程和自导距离条件下反舰导弹末制导雷达最小扇面角，并根据实例提出了反舰导弹打击目标时末制导雷达参数装订的修订策略和决策建议。

The target indication information delay is one of critical factors for missile precise attacking. Based on analyzing the error of target indication information delay and auto-control terminal point of missile，according to relative location of target point and auto-control terminal point of missile，a computational model of minimum search sector angle of terminal guidance radar was designed. The simulation shows the influence of different delay，target parameter，missile range and homing range on minimum search sector angle，and according to the example，some relative information for the commander in decision making is provided.