红外成像导引头是精确制导导弹系统的重要组成部分,导引头随动控制系统的性能决定着导弹的跟踪精度水平。为了提高导引头的随动跟踪系统的控制精度,文中首先对红外成像导引头系统进行建模,然后采用更有效的模糊规则设计了一种模糊自适应PID复合控制器,并引入了自适应控制因子对控制参数进行在线调整。最后采用传统PID控制方法与之进行仿真比较,结果表明模糊自适应PID控制可以有效改善系统动态性能,提高跟踪精度。

Infrared imaging seeker is considered as one of the most important parts of the precision-guided missile, while the performance of the seeker control system is a vital prerequisite to improve the tracking accuracy. To improve the precision of the control system, in this paper, a model for the infrared imaging seeker was firstly established, and then a fuzzy adaptive controller was designed by introducing an more effective fuzzy rule, and the self-tuning factors were made to modify the parameters of the fuzzy controller. Finally, the comparison between the control system using normal PID and fuzzy adaptive PID shows that the fuzzy adaptive PID controller could achieve better dynamic characteristics and tracking accuracy.