On the frequency resolution of improved empirical mode decomposition method

Ahmet Öztürk*, Serhat Şeker

*Bu çalışma için yazışmadan sorumlu yazar

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Özet

Empirical Mode Decomposition, which constitutes the core of Hilbert Huang Transform, is an efficient method in analysis of non-stationary and non-linear signals due to its data-driven nature. Nevertheless, the original method imposes a limitation on the frequency resolution and also suffers due to end effects. In this paper, through analyses of synthetic and actual vibration data, it is shown that better frequency resolution beyond the limitation imposed by the original method can be achieved by modifying the local mean approximation and boundary values of the original algorithm.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1798-1805
Sayfa sayısı8
DergiInternational Review of Electrical Engineering
Hacim5
Basın numarası4
Yayın durumuYayınlandı - 2010
Harici olarak yayınlandıEvet

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