基于快速反射镜的模糊自适应PID控制算法研究

针对机载平台在振动、扰动和快速机动条件下光电系统高精度稳定指向的需求,开展宽频带视轴稳定技术的相关研究,并针对该稳定系统的核心—快速反射镜,提出一种改进型的模糊自适应PID控制算法。该算法在经典PID控制算法基础上,引入模糊设计思想和参数自整定方法,解决了复杂工作环境下控制系统数学模型不易获取、控制参数时变等因素对稳定系统的影响,为保证远距离机载光电载荷的高精度目标定位及目标瞄准提供技术支撑。仿真结果表明,该控制算法相比经典PID控制具有响应速度快、稳态性能好、抗干扰能力强等优点,具有良好的控制效果。

Fuzzy adaptive PID control algorithm based on fast steering mirror

Aiming at the need for high-precision and stable pointing of optoelectronic systems under vibration,disturbance and rapid maneuvering conditions of airborne platforms,related researches on wide-band visual axis stabilization technology are conducted,and an improved fuzzy adaptive PID control algorithm is proposed for the core-quick reflection mirror of the stabilization system. Based on classical PID control algorithm,this algorithm introduces fuzzy design idea and parameter auto-tuning method,which alleviates the influence of the factors such as the difficulty to obtain mathematical model of control system and time-varying control parameters under complex working environment. It ensures long-distance,high-precision target positioning and aiming. The simulation results show that the control algorithm has the advantages of fast response,good steady-state performance,and strong anti-interference ability compared to the classical PID control.