LTPDA Toolbox™ | contents | ![]() ![]() |
Another possibility to build a transfer function model is to use the rational constructor, which implements a transfer function as a quotient of polynomials:
% DESCRIPTION: RATIONAL rational representation of a transfer function.
%
% a(1)s^m + a(2)s^{m-1} + ... + a(m+1)
% H(s) = --------------------------------------
% b(1)s^n + b(2)s^{n-1} + ... + b(n+1)
%
For example if the numerator and denominator coefficients are given by:
then we need to write down the following
m = rational([1 3 5], [1 8 10])
And now, as with the previous models, we can evaluate the response in a given frequency region
resp(m, plist('f1', 0.1, 'f2', 10))
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Partial fraction representation | Transforming models between representations | ![]() |
©LTP Team