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针对微小型弹药受终端角度约束和视角约束的制导问题,在二维平面内建立了微小型弹药与目标的相对运动模型,利用最优控制理论,将具有终端角度约束的制导问题转化为含终端约束条件的最优控制问题,提出了一种不需要视线角速率信息且满足终端角度约束的视角制导律,对视角制导律进行仿真研究。结果表明,当视角和可用过载足够大时,微小型弹药可以精确地命中固定目标,且终端角可以达到期望值。
Aiming at the guidance problem of micro-ammunition subject to terminal angle constraints and viewing angle constraints, a relative motion model of micro-ammunition and target is established in two-dimensional plane. Based on the optimal control theory, the guidance problem with terminal angle constraint is transformed into a terminal- Aiming at the optimal control problem of constraint conditions, a visual angle guidance law that does not need information of line-of-sight angular velocity and satisfies the terminal angle constraints is proposed. The results show that when the viewing angle and the available overload are large enough, the micro-ammunition can accurately hit the fixed target, and the terminal angle can reach the expected value.