摘要
研究了战术导弹自动驾驶仪的微计算机系统设计问题,讨论自动驾驶仪采用衰减记忆最小二乘法直接辨识弹体的时变参数,应用最小方差自适应控制方法计算出反馈控制量,实现闭环自适应控制。文中根据地空导弹自动驾驶仪对微机系统的功能要求,论证了微机系统总体性能参数的选择,设计出Z—8000CPU为核心的微机系统,推导出一套适合微机定点运算的算法算式,并在此基础上,编制了微机系统的应用软件。计算结果表明,用微处理机对导弹自动驾驶仪系统进行实时控制是可行的,能够得到满意的控制效果。
In this paper, a design scheme of the microcomputer system for the adaptive autopilot is presented. The suggested adaptyve atuopilot applies exponentially weighted least—squares algorithm to identify the system—varying parameters and uses minimun variance method, a design scheme of the microcomputer system for the adaptive autopilot is presented. The suggested adaptyve atuopilot applies exponentially weighted least—squares algorithm to identify the system time—varying parameters and uses minimun variance method to obtain the optimun control law. In order to accurately design, the overall characteristic parameters of the microcomputer system are selected according to the requirements of functions concerned the autopilot and a set of algorithm formula suited to fixed point arithmetic on the microprocessor is presented, due to which the software of the microcomputer system is compiled. The results of digital and hybrid simulation show that the software of the designed system can meet the requiremens of calculation and real—time characteristics, and it is feasible to use microprocessor in the real—time control of an adaptive autopilot.
出处
《飞行力学》
CSCD
北大核心
1993年第4期88-93,共6页
Flight Dynamics
基金
航空科学基金
关键词
导弹
自动驾驶仪
自适应控制
Autopilot Adaptive control Microprocessor system design
