防空导弹中末制导交班成功概率评估方法

针对雷达指令修正惯性中制导加主动寻的末制导体制下的防空导弹中末制导交班过程的评估问题,建立了防空导弹弹道交班模型和导引头交班模型,将导引方法引入弹道交班模型,确定了误差传递关系,根据导弹和目标的散布规律,给出了中末制导交班成功概率计算的解析方法,并运用蒙特卡罗仿真验证了该方法的正确性和可行性。通过仿真计算,对影响导弹中末制导交班成功概率的因素进行了分析,在保证导弹飞行速度的情况下,提高了导弹过载承受能力,改善了平台导航误差、跟踪雷达探测误差、导弹姿态误差、导弹惯导误差等的处理精度,可有效提高防空导弹中末制导交班成功概率。

The Evaluation for Successful Handoff of Antiaircraft Missile from Midcourse to Terminal Guidance

The handoff model of seeker and missile trajectory from midcourse guidance to terminal guid- ance are studied for antiaircraft missile using radar updated inertial midcourse guidance combined with ac- tive radar homing terminal guidance. Based on the transfer of errors and the interspersing rule of missile and target, the probability of successful handoff of missile trajectory is calculated by introducing the guid- ing rule to handoff model, and its validity and feasibility are validated by Monte Carlo simulation. The sim- ulation results show that the probability of successful handoff of antiaircraft missile from midcourse guidance to terminal guidance can be enhanced by improving the load allowed for antiaircraft missile maneuvering and the precision for navigation error, detection error, carriage control error, and inertia error.