模糊PID控制光电跟踪系统的抗干扰性分析

摘要

Airborne electro-optical tracking system is a complex nonlinear system,factors affecting the quality of their performance are abundant.This mathematical model is linear and no interference that omitted many non-linear links,so it is quite different from the actual system.In order to describe fuzzy adaptive PID control system with strong uncertainty robustness,model parameter perturbation method is introduced.Finally,through the introduction of model parameter perturbations and external interference method,the system＇s anti-jamming performance increased.And it provides a theoretical basis for devising fuzzy adaptive PID controller.%机载光电跟踪系统是一个复杂的非线性系统,影响其性能品质的因素很多。笔者建立的数学模型是略去很多非线性因素建立的线性模型,是没有外界干扰下的模型,和实际系统有一定的区别。为说明模糊自适应PID控制对不确定性系统有较强的鲁棒性,引入模型参数摄动方法,即增加外界干扰时进行仿真研究。最终得到了系统稳定的结论,为模糊自适应PID控制器的设计提供了理论依据。