The coefficients to be fed into the Filter function are exactly the coefficients of the numerator / denominator polynom of the rational system function.
To apply the filter from the question, use for example
Dim b = { 43498.1684982, 0.0, 0.0 }
Dim a = { 17857.1428571, 213.553113553, 1.0 }
Filter(, b, a)
