直接侧向力控制导弹的自适应模糊变结构末制导律设计

针对采用直接侧向力控制的敏捷性导弹，提出了一种适州于拦截大机动目标的自适应模糊变结构末制导律。由于采用了直接侧向力控制方式，提高导弹末段机动过载和快速响应能力的同时，也使得系统具有高度耦合非线性和参数不确定性。采用所设计的制导律在制导系统中不确定性函数为未知的情况下，利用自适应模糊系统的万能逼近能力以任意精度进行逼近，由此克服了模型小确定性和外界干扰对制导系统的影响。并通过引入目标最大机动加速度自适应算法，使得这种制导律中的变结构项具有变增益能力，能够适应目标各类机动的情况。仿真结果表明，该制导律对大机动目标具有较强的鲁棒性，并对各类机动目标均有较高的制导精度。

A Terminal Guidance Law Design for Side Jet Control Missile Based on Adaptive Fuzzy Variable Structure Control

A terminal guidance law for side jet control missile based on adaptive fuzzy variable structure control(AFVSC) is proposed.Although the performance of missile including the maneuvering ability and rapid response ability is greatly improved because of using side jet control,the guidance system is strong coupling nonlinear and the system parameter is uncertain.The universal approximation ability of adaptive fuzzy system is used to approximate the nonlinear function to any degree of accuracy which is unknown in the missile guidance system so as to overcome the influence of model uncertainty and external disturbance.And by adaptively adjusting maximum acceleration of maneuvering target,the gain of the variable term in this law can be changed with maneuver magnitude,so this law can be adapt to all kinds of maneuvering targets.The simulation results show that this law has stronger robustness to high maneuvering target and higher guidance precision while intercepting all kinds of maneuvering targets.