一类非线性系统的在线建模新方法  

New online modeling method for a class of nonlinear system

作　　者：魏瑞轩[1] 孔祥玉[2] 韩崇昭[2] 张优云[1] 吴立勋[3] 

机构地区：[1]西安交通大学机械学院,陕西西安710049 [2]西安交通大学电信学院,陕西西安710049 [3]空军工程大学工程学院,陕西西安710038

出　　处：《控制与决策》2004年第10期1101-1104,1108,共5页Control and Decision

基　　金：国家自然科学基金资助项目(60304004);中国博士后科学基金资助项目(2003033512);空军工程大学学术基金资助项目.

摘　　要：为减少非线性系统的Volterra级数模型在线建模的计算量,根据多模型合成的思想,提出一种基于预设模型在线合成被测系统当前Volterra级数模型的新方法,建立了模型合成的公式和方法.仿真实验表明,该方法具有较高的建模精度,能有效减少Volterra模型在线建模的计算量,并且易于工程实现.According to the multimodels combining idea, a new online modeling method based on the preset models combination for Volterra series model is presented to reduce the computation for online modeling of Volterra series model of nonlinear systems. The current Volterra series model of the detected system is online obtained by combining some preset models. The formula and method of the model combining are established. Simulation results indicate that the presented method has better modeling precision, and efficiently reduces the computation burden of online modeling for Volterra models, and is easily realized in engineering application.

关 键 词：非线性系统 Volterra级数模型 在线建模 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]