针对有限时间收敛制导律中非线性控制项参数的调节,提出了一种基于模糊控制理论的改进有限时间收敛制导律。该方法结合模糊控制理论和有限时间收敛制导规律,首先给出制导参数在有限时间收敛的前提下需要满足的范围,分析参数变化对系统收敛的影响效果;其次根据模糊控制理论设计模糊控制器实现参数自适应调节。数学仿真结果表明此设计可以有效地提高系统收敛速度并且抑制末端过载的高频抖振。 Aiming at the adjustment of nonlinear control term in finite time convergence guidance law, an improved finite time convergence guidance law based on fuzzy control theory is proposed. This method combines the fuzzy control theory and the finite-time convergence guidance law. Firstly, the necessary range of guidance parameters under the premise of limited time convergence is given, and the effect of the parameter variation on the system convergence is analyzed. Secondly, the fuzzy controller is designed according to the fuzzy control theory Parameter adaptive adjustment. The results of mathematical simulation show that this design can effectively improve the system convergence speed and suppress the high-frequency chattering of end overload.