A Study of EMD Modal Identification Based on Laplace Wavelet Matching

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.

关键词： Laplace wavelet EMD modal parameters synchronization test

作者: Jiang Qing Li Ting Yao Yan Cai Jinhui

作者单位: College of Metrology and Measuring Engnieering,China Jiliang University,Hangzhou 310018,China

会议类型: 国际会议

会议名称: 2012 International Conference on Intelligent System Design and Engineering Applications(2012年智能系统设计与工程应用国际会议 ISDEA 2012)

会议地点: 三亚

会议语种:英文

页码: 101-104

在线出版日期: 2012-01-06（万方平台首次上网日期，不代表论文的发表时间）