基于模糊逻辑的组合导引律

攻击大机动目标的组合导引律由比例项和前置角项组成,可以得到平直的末段弹道,但通常不能保持在大范围攻击情形下均有效。本文在组合导引律的基础上,设计一种新颖的模糊逻辑控制器,采用视线变化率和前置角偏差为输入变量,通过规则库嵌入专家经验,实现智能改变组合导引律中的系数。通过仿真验证,相对于组合导引律,此方法在大范围攻击情形下弹道更平直,脱靶量更小。

An Integrated Guidance Law Using Fuzzy Logic

An integrated guidance law which combined proportional navigation and fixed lead navigation can get smooth terminal trajectory under the situation that the target escaped with high acceleration,but it can not work in all interceptions.Based on the integrated guidance law,a novel fuzzy logic controller is designed.The controller has two inputs of the rate of the line of sight and fixed lead bias.By embedded experience of experts into rules,the controller can adjust the coefficients in the integrated guidance law automatically.The simulation results show that this method can get smoother terminal trajectory and smaller miss distance than those of the integrated guidance law in many interceptions.