in this paper some new applications of empirical mode decomposition (emd) and hilbert spectrum in seismic ground-roll attenuation, random noise attenuation and spectral decomposition are introduced. hilbert spectrum is a time-frequency representation for hilbert-huang transform which is obtained by combination of instantaneous frequency (if) concept and intrinsic mode function of empirical mode...

The Empirical Mode Decomposition is a process for signals which produces Intrinsic Mode Functions from which instantaneous frequencies may be extracted by simple application of the Hilbert transform. The beauty of this method to generate redundant representations is in its simplicity and its effectiveness. Our study has two objectives: first, to provide an alternate characterization of the Intr...

Empirical Mode Decomposition in 2-D space and time: a tool for space-time rainfall analysis and nowcasting S. Sinclair and G. G. S. Pegram Civil Engineering, University of KwaZulu-Natal, Durban, South Africa Received: 23 December 2004 – Accepted: 9 February 2005 – Published: 10 February 2005 Correspondence to: S. Sinclair ([email protected]) © 2005 Author(s). This work is licensed under a Cr...

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In this paper, we propose a variant of the Empirical Mode Decomposition method to decompose multiscale data into their intrinsic mode functions. Under the assumption that the multiscale data satisfy certain scale separation property, we show that the proposed method can extract the intrinsic mode functions accurately and uniquely.