Title :
Distinction non-stationary pulse wave signals with HHT method
Author_Institution :
Coll. of Mech. Eng., Liaoning Sci. & Technol. Univ., Anshan, China
Abstract :
In order to distinguish the difference of non-stationary pulse wave signals, the novel time-frequency analysis approach, i.e. Hilbert-Huang transform (HHT), is applied in this paper. First Hilbert-Huang transform is briefly introduced. Secondly, two differently non-stationary pulse wave signals are described in Empirical Mode Decomposition (EMD). With these results, the two pulse wave signals that looked apparently similar in time waves are distinctly different from each other. It is proved that HHT is effective for the purpose of distinction of non-stationary analysis.
Keywords :
Hilbert transforms; signal processing; time-frequency analysis; HHT method; Hilbert-Huang transform; empirical mode decomposition; nonstationary pulse wave signal analysis; time wave; time-frequency analysis; Frequency modulation; Mechanical systems; Noise; Spectral analysis; Spline; Time frequency analysis; Transforms; Empirical Mode Decomposition (EMD); Hilbert-Huang transform (HHT); non-stationary; pulse wave signals;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023795
