Li H.,North University of China |
Li H.,Inner Mongolia Key Laboratory for Utilization of Bayan Obo Multi Metallic Resources Elected State Key Laboratory |
Pan H.,North University of China |
Ren H.,North University of China
Zhendong yu Chongji/Journal of Vibration and Shock | Year: 2016
The baseline shift components in the impact vibration signals are associated with the high impact energy and sensor characteristics and they influence data analysis. This paper presented a new method for detecting the shifted baseline level and correction of the baseline shift. The proposed method was based on the cross-correlation coefficient between the positive shock response spectrum and the negative shock response spectrum. The new method for the baseline correction of impact vibration signal which represents the reconstruction of signal was realized by using the empirical mode decomposition(EMD) based on the cross-correlation coefficient. The validity and precision of the proposed method was demonstrated with analysis and validation of the signals generated in the operation process of an automation gun. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.