# transfer function

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## transfer function

[′tranz·fər ‚fəŋk·shən]
(control systems)
The mathematical relationship between the output of a control system and its input: for a linear system, it is the Laplace transform of the output divided by the Laplace transform of the input under conditions of zero initial-energy storage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The proposed filter offers the 2nd order functions (HP, BS, AP) and it also offers HP transfer function of the 1st order and direct transfer between the input and output of the filter.
Here, [X.sub.pn] is the ANN input, [W.sub.kn] the weight, [b.sub.k] the bias, and [f.sub.K] the transfer function for the hidden layer.
We assume that the transfer function of the regulator (3) retains its form for random variations of the parameters k, [a.sub.1], [a.sub.2], [a.sub.3], [b.sub.1], [b.sub.2].
System identification with a transfer function involves determining the transfer function between the input and output as well the noise.
 studied the accuracy of volume rendering for arterial stenosis measurement and the results suggested that the choice of transfer function parameters greatly affects the accuracy of volume rendering, while accurate transfer function parameters selection is still a challenge due to the lack of meaningful guidance information and intuitive user interface.
where: x(s) - n is vector of variable systems represented according to Laplace; A(s) - nxn uninterrupted transfer function matrix; [x.sup.Ti] (s)--discrete transformation in times [T.sub.i], i = 1, ..., N vector x(s); R - n - standardized input vector which, according to system linearity, can be considered as vector R' = [1 0 0 ...
From the average transfer function, the model parameters are obtained and the controller parameters are obtained based on Zeigler-Nichols tuning method as given in the equations 4,5and 6.The control parameters are tabulated (Table 3).
In Table 2 the transfer function coefficients identified for each pilot/test examined are presented (pseudointegrator poles, [p.sub.1] and [p.sub.2], are set equal to 1 Hz).
Furthermore, the nonlinear transfer function does not obey the rule of superposition.
The problem statement and solution rely on the concept of generalized transfer function for nonlinear systems [8,26].

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