摘要
针对质量矩导弹变质心控制问题,提出一种基于模糊逻辑的姿态控制规律.首先建立了姿态运动模型;其次设计了滑块位置对应的模糊规则表,并通过分析角加速度和遍历隶属函数的关系,对滑块位置进行协调,同时利用遗传算法对控制参数进行校正;再次,通过分析滑块运动特性得到滑块可行的响应时间选取范围;最后讨论了系统的稳定性,对弹体相关参数进行约束,并对单通道扰动模型进行了分析.仿真结果表明,该控制律能有效实现导弹的姿态调整.
To solve the problem of moving mass control for mass moment missile, an attitude control approach based on fuzzy logic is presented. The attitude model is constructed, and the fuzzy rules for the moving mass position in respective axial are designed. According to analysis of the relation between angular acceleration and searching subject function, three moving mass positions are regulated in phase. Simultaneously, the control parameters are revised by using genetic algorithm. Due to the characteristic movement of moving masses, the feasible range of response time for each moving masse is obtained. The stabilization is discussed and relevant parameters of missile are restricted. The interferential model of single channel is analyzed. Simulation results show that the missile can be satisfied to realize attitude adjustment efficiently.
出处
《控制与决策》
EI
CSCD
北大核心
2008年第1期19-24,29,共7页
Control and Decision
基金
国家863创新基金项目(2004AA811052)
关键词
质量矩导弹
姿态控制
滑块
模糊规则
遍历隶属函数
响应时间
Mass moment missile
Attitude control
Moving mass
Fuzzy rule
Searching subject function
Response time
