Analysis and Processing Shock Acceleration Signal Based on EMD
The projectiles penetration acceleration signal from the test is a kind of shock acceleration signal, and also is a kind of.typical Nonstationary Random Signal(NRS),the duration of the signal is very short and its frequency components are rapidlyh changed with time.Empirical Mode Decomposition(EMD) is a novel method especially fit for dealing with the NRS ,it can decompose the signal into the limited Inherent Modality Function(IMF) rather than the sine or cosine as the Fourier transformation does,each IMF component highlights the signal partial characteristic, and it can gain effective and accurate characteristic information of the signal with the further analysis to the IMF.The final analysis results show that EMD is a useful and effective analysis tool for penetration acceleration signal,and it is significant for engineering design and practice.
Penetration Acceleration Signal EMD IMF MSMS
Ming Li Mingjie Liu Li Bai
School of Mechatronical Engineering,Beijmg Institute of Technology Beijing, China
国际会议
长沙
英文
545-548
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）