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.
Original language | English |
---|---|
Pages (from-to) | 903-907 |
Number of pages | 5 |
Journal | IEEE Transactions on Biomedical Engineering |
Volume | 44 |
Issue number | 9 |
DOIs | |
State | Published - 09 1997 |
Externally published | Yes |
Keywords
- Heart rate variability
- Interference suppression
- Spectral analysis
- Wignet distribution