基于相对坐标的空空导弹截获概率计算模型

Computational Model of the Targe Acquisition Probability of Air-to-air Missile based on Relative Coordinate

中远距空空导弹通常采用捷联惯导/GPS+双向数据链+末制导的复合制导体制,机弹惯导对准误差和机载雷达测角误差是目标指示误差的主要误差源。在攻击隐身目标时,由于导引头探测距离减少,对准误差和测角误差对目标指示误差影响更加显著,降低了截获概率约束的攻击距离。针对中远距空空导弹中末制导交接班,提出了一种基于相对坐标计算目标指示误差方法,推导了计算公式,并与采用绝对坐标计算目标指示误差方法对比,结果表明采用相对坐标的目标截获概率模型显著提高了中末制导交接班时的目标截获概率。

Medium/long range air-to-air missiles usually adopt a combined guidance of inertial navigation/GPS, bidirectional data link and terminal guidance, alignment errors and angle measuring error have a greater influence on target designation error, and reduced attack range.A methed of estimating the target acquisition probability based on relative coordinate is employed.The advantages of the relative coordinate method is analyzed according to the numerical test.