一种新的MIMO非线性系统动态解耦控制方法  

A Novel Dynamic Decoupling Control Method for MIMO Nonlinear System

作　　者：段翀[1] 谢寿生[1] 尉询楷[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《火力与指挥控制》2006年第8期48-52,共5页Fire Control & Command Control

摘　　要：提出了一种基于回归小波网络(recurren t w ave let netw orks)的多输入多输出系统(m u lti-inpu t m u lti-ou tpu t)动态解耦控制的新方法。该方法为分散式控制结构,采用回归小波网络作为解耦辨识器(decoup ling iden tifier),在线动态辨识、回馈对应输入输出的灵敏度信息(sens itiv ity in form ation),P ID神经网络控制器根据回馈信息实现自适应分散独立控制。小波函数的紧支性、波动性以及回归网络较强的动态非线性映射能力使得回归小波网络具有较好的综合性能。仿真结果表明,用该方法构成的控制系统解耦效果好,收敛速度快,且具有较好的鲁棒性。A novel dynamic decoupling control method for MIMO nonlinear system based on recurrent wavelet networks is presented in this paper. It adopts dispersive neural networks control structure and utilizes recurrent wavelet networks as decoupling identifier and PID neural network as controller respectively. The decoupling identifier identifies the MIMO nonlinear system and feedback the sensitivity informaiton for PID controller through on-line learning. Simultaneously PID controller updates the weights and adjusts the system actively. Benefited from wavelet transform＇ being constrictive and fluctuant, it shows excellent temporal-frequency localization property,while it possesses such merits as powerful ability of mapping nonlinear systems, capturing the dynamic behavior of the system ect, thus, this network converges quickly with high precision and good robustness.

关 键 词：动态解耦控制 回归小波神经网络 多输入多输出系统 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]