Distinction of two different nonstationary signals with Hilbert-Huang transform

Qingkai Han; Shuai Zhang; Yong Yang; Yanhuai Qu; Bangchun Wen

doi:10.1117/12.858238

22 January 2010 Distinction of two different nonstationary signals with Hilbert-Huang transform

Qingkai Han, Shuai Zhang, Yong Yang, Yanhuai Qu, Bangchun Wen

Proceedings Volume 7500, ICMIT 2009: Mechatronics and Information Technology; 75000Z (2010) https://doi.org/10.1117/12.858238
Event: ICMIT 2009: Mechatronics and Information Technology, 2009, Gwangju, Korea, Republic of

Abstract

In order to distinguish the difference of non-stationary signals, the novel time-frequency analysis approach, i.e. Hilbert- Huang transform (HHT), is applied in this paper. Firstly, Hilbert-Huang transform is briefly introduced. Secondly, two different non-stationary signals are described in Empirical Mode Decomposition (EMD) and Hilbert spectra. With these results, the two 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 signals.

Citation Download Citation

Qingkai Han, Shuai Zhang, Yong Yang, Yanhuai Qu, and Bangchun Wen "Distinction of two different nonstationary signals with Hilbert-Huang transform", Proc. SPIE 7500, ICMIT 2009: Mechatronics and Information Technology, 75000Z (22 January 2010); https://doi.org/10.1117/12.858238

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