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针对现代战机远距导引自动化、智能化的发展,研究了一种考虑末端拦截角约束的时间最优导引律。基于最优控制相关理论,研究了战机以给定进入角导引至固定目标点的时间最优导引律。在假设目标机动轨迹已知的前提下,通过准确地对战机追踪导引算法剩余时间的计算,提出了将载机对运动目标的追踪问题转化为载机对固定目标点的导引问题。仿真结果表明,该导引算法与只考虑时间最优的导引算法相比,能在完成导引过程后,使得战机相对目标飞机占据有利态势,从而验证了该导引算法的有效性。
Aiming at the development of automation and intelligence of long-range guided modern warplanes, an optimal time steering law considering the terminal interception angle constraints is studied. Based on the theory of optimal control, the optimal guidance law of fighter aircraft to a fixed target point at a given entrance angle is studied. On the premise of knowing the target trajectory is known, by accurately calculating the remaining time of the fighter tracking and guidance algorithm, the problem of tracking the moving target of the carrier to the guidance of the fixed target is put forward. The simulation results show that compared with the guidance algorithm which considers only the best time, the guidance algorithm can make the fighter plane occupy a favorable position relative to the target aircraft after the guidance process is completed, and the validity of the guidance algorithm is verified.