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- W2806559393 abstract "Estimating envelope of a signal has various applications including empirical mode decomposition (EMD) in which the cubic $C^{2}$ -spline based envelope estimation is generally used. While such functional approach can easily control smoothness of an estimated envelope, the so-called undershoot problem often occurs that violates the basic requirement of envelope. In this paper, a tangentially constrained spline with tangential points optimization is proposed for avoiding the undershoot problem while maintaining smoothness. It is defined as a quartic $C^{2}$ -spline function constrained with first derivatives at tangential points that effectively avoids undershoot. The tangential points optimization method is proposed in combination with this spline to attain optimal smoothness of the estimated envelope." @default.
- W2806559393 created "2018-06-13" @default.
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- W2806559393 date "2018-04-01" @default.
- W2806559393 modified "2023-09-25" @default.
- W2806559393 title "Envelope Estimation by Tangentially Constrained Spline" @default.
- W2806559393 doi "https://doi.org/10.1109/icassp.2018.8462203" @default.
- W2806559393 hasPublicationYear "2018" @default.
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