Flowcharts of the newly proposed algorithm. (a) Flowchart of the two-sided filtration technique; (b) Flowchart of the multi-iterative approximation technique. Y
[n] = Fi|H(z) <Xin[n]>indicates that the input Xin[n] is filtered by the system H(z), and the relevant output is Y
[n]. ynme[n] = BSFT (x
[n], fs, f0, Δf) indicates that the input x
[n] is processed by the Two-sided filtration technique with the specified parameters fs, f0 and Δf, and the relevant output is ynme[n].