基于Volterra级数和方波脉冲函数变换的非线性系统模型辨识与故障诊断

Nonlinear System Identification and Fault Diagnosis Based on Volterra Series and Block-Pulse Function Transform

本文采用Volterra级数和方波脉冲函数变换技术对一类非线性系统的数学模型进行了辨识,导出了相应的辨识公式。在此基础上,提出了系统的多重预设模型的故障诊断方法。

It is presented to identificate the hybrid models of nonlinear systems by using Volterra series and the block-pulse function transform. The identification formulae concerned are derived. A new fault diagnosis method based on multiple preset models is also proposed.