Threshold Noise Reduction Research of Improved EEMD Method

摘要：

　　In order to extract effectively detection signals in the noise background for non-stationary signal.On the basis of EEMD, improved EEMD is put forward, the improve EEMD threshold noise reduction is researched in this paper.The simulation signal compared the noise reduction effect of the wavelet, EMD, EEMD, and the improved EEMD.The improved EEMD threshold noise reduction have the best noise reduction result, the highest signal-to-noise ratio, the smallest standard deviation error.After the improved EEMD threshold noise reduction, the measurement signal time domain waveform smooth.More high frequency noise was obviously reduced in Hilbert time-frequency spectrum.Signal-to-noise ratio significantly improve, and signal characteristics are very clear.

关键词： EEMD Endpoint effect Noise reduction Vibration signal analysis

作者: Meijun Zhang Hao Chen Chuang Wang Qing Cao

作者单位: PLA University of Science and Technology,Nanjing,China Guoxin Securities limited Company,Shenzhen,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 237-240

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）