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随着近迫武器系统(CIWS)等各类反导系统的发展越来越完善,单一导弹的突防面临更大的困难。针对近迫武器系统防御特点,通过设计带有攻击时间和攻击角度约束的协同制导方式可有效突防。建立模型将制导控制问题转化为终端时刻固定,带有终端状态约束的非线性最优控制问题,利用高斯伪谱法将其转化为非线性规划问题,并用SQP方法进行求解。进而应用预测控制的思想,通过实时在线求解最优控制问题从而实现了导弹制导律的设计,通过仿真验证证明了此方法的可行性。
With the development of all kinds of anti-missile systems such as the CIWS becoming more sophisticated, it is more difficult for a single missile to penetrate into the air. Aiming at the characteristics of the defense system of the near-force weapon system, it is effective to design a coordinated guidance system with attack time and attack angle constraints. The model is established to transform the guidance control problem into a non-linear optimal control problem with fixed terminal and terminal state constraints. The problem is transformed into a nonlinear programming problem using Gaussian pseudospectral method and solved by SQP method. Then the idea of predictive control is applied to realize the design of missile guidance law by solving the optimal control problem online in real time. The feasibility of this method is proved through simulation.