A Study of EMD Modal Identification Based on Laplace Wavelet Matching

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原文链接

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外文摘要：This paper proposes a method of empirical mode decomposition (EMD) modal parameter identification based on Laplace wavelet matching， on the basis of synchronization test for pressure switch。 Taking a pressure switch which is used in the air-conditioning of automotives as a object， the paper conducts a lot experiments with hammering test and white noise for vibrating identification of diaphragm。 Results proves that the method is able to overcome the disturbance of white nois and impulse noise， extract accurate modal parameters from multimoding aliasing and crowded modals， and finally identify the vibrating signal of diaphragm which solves the problem of synchronization test for pressure switch， and has the guidance significance to the related profession。 Keywords- Laplace wavelet， EMD， modal parameters， synchronization test。

外文关键词：

Laplace waveletEMDmodal parameterssynchronization test

作者：

Jiang Qing、Li Ting、Yao Yan、Cai Jinhui

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作者单位：

College of Metrology and Measuring Engnieering,China Jiliang University,Hangzhou 310018,China

会议名称：

International Conference on Intelligent System Design and Engineering Application

会议地点：

Sanya(CN)

会议母体文献：

2012 Second International Conference on Intelligent System Design and Engineering Application

页码：

101-104

出版时间：

2012