Szukana fraza: [Abstract = "The approach is related to discrete approximation of continuous\-time systems, where a kind of matching to the input and output signals is taken into account. In particular, the normal integrating operator technique is utilised. Two methods of \"tempering\" the characteristics of discrete\-time integrators are proposed. One method consists in the transformation of an original system of matched IIR filters into an equivalent system of FIR filters."]