control.frd(d, w)

Construct a frequency response data model

frd models store the (measured) frequency response of a system.

This function can be called in different ways:

frd(response, freqs)
Create an frd model with the given response data, in the form of complex response vector, at matching frequency freqs [in rad/s]
frd(sys, freqs)
Convert an LTI system into an frd model with data at frequencies freqs.
  • response (array_like, or list) – complex vector with the system response
  • freq (array_lik or lis) – vector with frequencies
  • sys (LTI (StateSpace or TransferFunction)) – A linear system

sys – New frequency response system

Return type:


See also

FRD(), ss(), tf()