中末制导交班是武器导引头工作过程中的重要组成部分。针对地空导弹采用复合制导的特点,首先,推导了导弹角度截获概率与距离截获概率的表达式,着重研究了目标机动对交班成功概率的影响;然后,建立了包含目标落入有效视场概率以及目标检测概率的交接班成功概率模型, 可仿真生成任意时刻的交接班成功概率;最后,对水平转弯、蛇形规避两种典型战术机动进行了分析。仿真结果表明隐身飞机采用战术机动对中末制导交班成功概率影响显著。该研究为导引头对抗隐身目标战术机动提供了仿真理论和实验依据。

Midcourse and terminal guidance handover is an important part of process for weapon seeker. In view of characteristics that the surface-to-air missile uses compound guidance, the expressions of acquisition probability by angle and acquisition probability by distance are derived. The effects of maneuvering target on probability of successful handing off are studied especially. The model of probability of successful handing-off is established which includes the probability that the target falls into the effective field of view and the probability of the target detection. The success probability of handover at any time can be generated by simulation. Finally, the typical tactical maneuvers of horizontal turn and avoiding weaving are analyzed. The conclusions are generally obtained through simulation that there are obvious effects of the stealth aircraft using tactic maneuver on the success probability of midcourse and terminal guidance handover. The study provides a method foundation and experiment evidence for seekers against tactical maneuver of stealth targets.

TN959. 2

国家自然科学基金资助项目(61372033);目标与环境电磁辐射重点实验室创新基金资助项目(STES2014-2)