Assertion: analog filter | /r/HasProperty | iir filters
Facets:
value: on the determination of transfer functions
type: PURPOSE
Source sentences:
text: Classical analog filters are IIR filters, and classical filter theory centers on the determination of transfer functions given by low order rational functions, which can be synthesized using the same small number of reactive components.
text: Since classical analog filters are IIR filters, there has been a long history of studying the range of possible transfer functions implementing various of the above desired filter responses in continuous time systems.