脱靶量是舰空导弹重要的作战性能指标，针对某型导弹，从攻防对抗的机理出发，采用矢量运算概念描述舰空导弹对抗反舰导弹的脱靶量。结合矢量运算法则，建立舰空导弹拦截矢量模型、反舰导弹机动矢量模型，同时考虑了导引头噪声和舵系统的过载限制，提出了一种制导盲区脱靶量的解算方法。然后针对不同运动特性的目标、不同干扰强度进行仿真计算。仿真结果表明，目标运动特性和导引头干扰误差等因素对脱靶量大小影响显著，为评价舰空导弹作战效能和有针对性的采取拦截措施提供了技术参考。%Miss distance is an important operational performance index for ship⁃to⁃air missile. Based on attack⁃defense con⁃frontation mechanism, it is proposed to describe the miss distance of ship⁃to⁃air missile countering anti⁃ship missile quantita⁃tively by using the concept of vector operation. Combining vector algorithm, the vector models of missile intercepting and tar⁃get maneuvering are built and an algorithm of calculating miss distance caused by guidance blind distance is given. Then sim⁃ulation researches are carried out according to different motion characteristics of targets and different influences of jamming. The simulation result indicates that factors such as the target motion characteristics and the error of seeker affect miss dis⁃tance significantly, which offers a technical reference on evaluating the fighting effectiveness of missile and on taking conse⁃quent intercepting measures.
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