Definition: | ratio of the complex quantity representing a time-varying quantity in terms of complex frequency at the output of a linear time-invariant two-port, to the complex quantity repre-senting the corresponding input quantity, the two complex quantities being defined in the same manner
NOTE – The complex quantities are generally the Laplace transforms of the time-varying quantities. In this case, the transfer function is the Laplace transform of the impulse response, and the term "fonction de transfert isomorphe" is used in French.
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