A new sifting method based on inflection point

Author

Hong Hong ; Heng Zhao ; Yusheng Li ; Chen Gu ; Xiaohua Zhu

Author_Institution

Sch. of Electron. & Opt. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

fYear

2014

fDate

20-23 Aug. 2014

Firstpage

228

Lastpage

232

Abstract

A new sifting method based on inflection point (S-BIP) for empirical mode decomposition is proposed in this paper, aiming at separating the modes with frequencies overlapped in an octave. The numerical analysis for some typical synthetic signals shows that the new approach can significantly reduce the ratio of the upper and lower frequency limits of an intrinsic mode function from 2 to 1.3, which mitigating the scale-mixing effect and enhancing the power of frequency resolution. In addition, as compared to the existing schemes, the proposed method significantly reduces computational complexity and benefit its spread application in real signal processing.

Keywords

signal resolution; time-frequency analysis; S-BIP; computational complexity; empirical mode decomposition; frequency resolution; intrinsic mode function; numerical analysis; real signal processing; sifting method based on inflection point; synthetic signals; Conferences; Digital signal processing; Empirical mode decomposition; Oscillators; Signal resolution; Time-frequency analysis; empirical mode decomposition; inflection point; intrinsic mode function; scale mixing;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing (DSP), 2014 19th International Conference on

Conference_Location

Hong Kong

Type

conf

DOI

10.1109/ICDSP.2014.6900834

Filename

6900834