Chan H L, Lin J L, Huang H H, Wu C P
Department of Electrical Engineering, National Taiwan University, Taipei, ROC.
IEEE Trans Biomed Eng. 1997 Sep;44(9):903-7. doi: 10.1109/10.623060.
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.
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