一种对噪声干扰鲁棒的模糊末制导律设计与仿真

Design and Simulation of a Fuzzy Terminal Guidance Law with Robustness to Measurement Noise Disturbances

提出一种对测量噪声干扰鲁棒的模糊末制导律。进行模糊末制导律设计时,在分析导弹和来袭目标运动特性的基础上,根据最优制导律设计专家经验和测量噪声的干扰特性建立模糊规则。数字仿真结果表明所提出的末制导方法与传统比例导引方法比较,在测量噪声干扰和测量数据不精确的情况下,具有弹道更平直、拦截时间更短,对噪声干扰鲁棒的优点。模糊末制导律算法简单可行易于实时实现。

A fuzzy terminal guidance law with robustness to measurement noise disturbances is presented. Based on analyzing the missile and target motion dynamics, the fuzzy rules are established according to design expert experience of optimal guidance law and characteristics of measurement noise disturbances. Numerical simulation results are given to illustrate that the presented fuzzy guidance law has smoother trajectory, shorter intercept time and better robustness to noise disturbances than the traditional proportional guidance law in the condition of measurement noise disturbances and imprecise sensor data. The presented fuzzy terminal guidance law is simple and easy for real-time implementation.