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基于变结构控制理论推导得出一种命中角约束下的导引律。以某型动能弹为例,分别针对固定目标和慢速移动目标开展了弹道仿真。计算结果发现,无论是打击固定目标还是慢速移动目标,动能弹都能够以指定的终端角度准确命中,而且命中目标时,动能弹的攻角和侧滑角均保持为0°,有利于提升动能弹的打击效果。动能弹在整个过程中,过载、攻角和侧滑角均满足限制条件,说明该弹着角约束导引律是可行的。
Based on the variable structure control theory, a guidance law with hitting angle constraint is derived. Taking a kinetic energy projectile as an example, trajectory simulation is carried out for fixed targets and slowly moving targets respectively. The calculation results show that the kinetic energy bomb can accurately hit at the specified terminal angle both in the fixed target and the slow moving target, and when the target is hit, the attack angle and the side slip angle of the kinetic energy bomb remain at 0 °, which is favorable to ascension Kinetic bomb strike effect. During the whole process of dynamic energy bombardment, overload, angle of attack and side-slip angle all satisfy the restrictive conditions, which shows that this law is feasible.