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Elimination of interference component in Wigner-Ville distribution for the signal with 1/f spectral characteristic
1Department of Electrical Engineering, National Taiwan University, Taipei, ROC.
IEEE Transactions on Bio-Medical Engineering
|September 1, 1997
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 alpha 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.