An Adaptive Spectral Kurtosis Method Based on Optimal Filter

Figure 9

An example to illustrate the large kurtosis value of a subband signal filtered by a narrow bandwidth filter. (a) is the original signal and (c) is the subband signal filtered by a narrow bandwidth filter. (b) and (d) are the spectrum of corresponding (a) and (c).

(a)

(b)

(c)

(d)