On the HHT, its problems, and some solutions

• Author(s): Ortigueira, M.D. ; Rato, R.T. ; Batista, A. G.
• Date: 2008
• Persistent ID: http://hdl.handle.net/10362/2415
• Origin: Repositório Institucional da UNL
• Subject(s): Empirical mode decomposition; Intrinsic mode function; Parabolic interpolation; Extrema detection; Amplitude–frequency modulation
• Document Type: Article
• Language: English

Description

Mechanical Systems and Signal Processing, Vol.22, Number 6 The empirical mode decomposition (EMD) is reviewed and some questions related to its effective performance are discussed. Its interpretation in terms of AM/FM modulation is done. Solutions for its drawbacks are proposed. Numerical simulations are carried out to empirically evaluate the proposed modified EMD.