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- W2090781071 abstract "The empirical mode decomposition (EMD) has achieved its reputation by providing a multi-scale time-frequency representation of nonlinear and/or nonstationary signals. To extend this method to vector-valued signals (VvS) in multidimensional (multi-D) space, a multivariate EMD (MEMD) has been designed recently, which employs an ensemble projection to extract local extremum locations (LELs) of the given VvS with respect to different projection directions. This idea successfully overcomes the problems of locally defining extrema of VvS. Different from the MEMD, where vector-valued envelopes (VvEs) are interpolated based on LELs extracted from the 1-D projected signal, the vector-valued EMD (VEMD) proposed in this paper employs a novel back projection method to interpolate the VvEs from 1-D envelopes in the projected space. Considering typical 4-D coordinates (3-D location and time), we show by numerical simulations that the VEMD outperforms state-of-art methods." @default.
- W2090781071 created "2016-06-24" @default.
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- W2090781071 date "2014-10-01" @default.
- W2090781071 modified "2023-10-02" @default.
- W2090781071 title "A different view on the vector-valued empirical mode decomposition (VEMD)" @default.
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- W2090781071 doi "https://doi.org/10.1109/cisp.2014.7003885" @default.
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