Figure 3

Schematic diagram of the two-sided filtration technique. (a) The output $y_{\mathit{me}}^r\left[n\right]$ of the notch filter H _i (z) when applied to the signal in Figure 2(d); (b) First half of dy _me [n]; (c) Another half of dy _me [n]; (d) First half of $d{y}_{\mathit{me}}^{\text{'}}\left[n\right]$; (e) Second half of $d{y}_{\mathit{me}}^{\text{'}}\left[n\right]$; (f) First half of ls _me [n]; (g) Second half of ls _me [n]; (h) Segment of js _me [n]; (i) Residues $x_{\mathit{me}}\left[n\right]-y_{\mathit{me}}^n\left[n\right]$; (j) The ultimate output $y_{\mathit{me}}^n\left[n\right]$ of the signal in Figure 2(d) processed by the present method. (c), (e) and (g) show results at relevant positions of the first halves. To this example, it is implemented at f _s  = 500 Hz with f₀ = 50 Hz, and Δf = 3.0 Hz.