空空导弹攻击机动目标的三维最优制导律研究

在三维空间导弹与目标的运动学关系模型的基础上,将二维平面中空空导弹攻击机动目标的最优制导律推广至实际的三维空间。考虑到目标做大机动运动的情况,在制导指令中加入与目标加速度成比例的修正项,并采用遗传算法对该制导指令中的比例因子进行优化。最后通过数字仿真,并和传统的追踪导引和比例导引相比较,表明该最优制导律所需机动过载小,追击目标所需时间短,并且能够精确有效地摧毁大机动目标。

Research on Three-Dimensional Optimum Guidance Law for Air-to-Air Missile Attacking Maneuvering Target

Based on the three-dimensional model for missile-target pursuit evasion motion,a three-dimensional optimum guide algorithm is found out.Allowing for highly maneuverable targets,a corrected term which is proportional to the target acceleration is added to the guidance law,and the proportional factors in the guidance law are optimized by genetic algorithm.The simulation results of air-to-air missile attack show that this optimum guide algorithm needs lower overload demand of acceleration and shorter interception time,and can destroy the maneuverable targets precisely and effectively.