摘要
为了满足拦截高速大机动目标、高精度制导的需要,将制导律设计问题转化为反馈控制问题,基于模糊控制理论,提出了一种解析描述模糊控制规则的新型自适应模糊导引律.该模糊控制器将比例制导律指令及其微分作为模糊控制的输入量,模糊控制规则及模糊推理用解析式表达,易于计算、调整,适合实时在线控制.该导引律能够根据目标加速度和目标速度的变化自适应地改变模糊控制规则,因此具有较强的鲁棒性.对拦截高速大机动目标的大量仿真结果表明,所提出的导引律在脱靶量、拦截时间等指标方面显著优于传统的比例导引律.
A new adaptive fuzzy guidance law is proposed by applying fuzzy control theory to the interception of high-speed maneuvering targets. The problem of guidance law design is converted to feedback control and the command of proportional guidance law and its differential are designed as the inputs of the fuzzy controller. The fuzzy control rules and fuzzy reasoning are expressed by analytical description, which can be calculated easily and is suitable for real-time on-line control. The guidance law can change the fuzzy control rule adap- tively according to the strength of maneuvering and the speed of target, therefore it has strong robustness. Numerical simulations show that the proposed guidance law exhibits better performance than traditional proportional guidance law in miss-distance and interception time.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2009年第11期21-24,共4页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(60773065)
关键词
自适应制导律
模糊控制
导弹拦截
比例导引律
adaptive guidance law
fuzzy control
missile interception
proportional guidance law
