摘要
模型识别是设备状态的识别方法之一。模型识别针对设备的运行参数建立时间序列模型，根据相应的判据，对模型进行识别，以诊断设备的状态。时间序列模型主要是自回归模型。文章介绍自回归模型的建立，并分析各种自回归模型识别方法在设备状态诊断中的应用。
The model identification is an identifying method of equipment state. Based on an operating parameter, the time series model is formed, and according to a corresponding eriterion, the model is identified to diagnose the equipment state. AR model is wide used time series model. The formulation of AR model is introduced in the paper, and the application of each method of AR model identification to equipment state diagnosis is analyzed.
