Elimination of interference component in Wigner-Ville distribution for the signal with 1/f spectral characteristic
Journal
IEEE Transactions on Biomedical Engineering
Journal Volume
44
Journal Issue
9
Pages
903
Date Issued
1997
Author(s)
Abstract
A new technique for interference-term suppression in Wigner-Ville distribution (WVD) is proposed for the signal with 1/f spectrum shape. The spectral characteristic of the signal is altered by f(α) filtering before time-frequency analysis and compensated after analysis. With the utilization of the proposed technique in smoothed pseudo Wigner-Ville distribution, an excellent suppression of interference component can be achieved.
A new technique for interference-term suppression in Wigner-Ville distribution (WVD) is proposed for the signal with 1/f spectrum shape. The spectral characteristic of the signal is altered by f α filtering before time-frequency analysis and compensated after analysis. With the utilization of the proposed technique in smoothed pseudo Wigner-Ville distribution, an excellent suppression of interference component can be achieved.
Subjects
Heart rate variability; Interference suppression; Spectral analysis; Wignet distribution
Type
journal article