Among these ones the standard median
To probe the FWMA performance dependence on the slew rate width, a corrupted reference signal is synthetically generated and filtered with the proposed technique. The filtering is carried out for different values of the slew-rate width. Fig. 10 shows the Signal-to-Noise Ratio (SNR) for values of W varying from 1 to 120% of the signal range. This range is defined by the difference between the maximum and the minimum value of the signal to be filtered. One notes that AP 18 from W = 100% on, the SNR is practically immutable. The thicker solid line indicates the SNR value for the case where no filter is applied to the reference. As loop of Henle can be observed, this line is quite lower than the lowest SNR value of the filtered reference. This can be comprehended with Fig. 11 which shows the filtering performance for W = 1% and for W = 100%. For this last value of W, one can observe that each impulsive is associated with a smoothed pulse presented in the filter response. That is, despite high values of W, permissive for high variance in the signal to be filtered, the filter is still able to smooth its response.