Title :
A method based on Morlet wavelet for extracting vibration signal envelope
Author :
Liu Chong Chun ; ZhengDing, Qiu
Author_Institution :
Dept. of Electron. Eng., Jinan Univ., GuangZhou, China
Abstract :
In this paper the wavelet envelope is defined. A method based on Morlet wavelet for extracting vibration signal envelope is presented. It is also proved by theoretical and experiment that the method is better than that of the Hilbert transform for extracting vibration signal envelope
Keywords :
feature extraction; noise; signal processing; vibrations; wavelet transforms; Hilbert transform; Morlet wavelet; noise suppression; time domain transform; time-frequency localization; vibration signal envelope extraction; wavelet envelope; Data mining; Fault diagnosis; Fourier transforms; Information science; Multiresolution analysis; Noise reduction; Signal analysis; Time frequency analysis; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.894504
