Z Transform 2P/2Z Magnitude, Phase, Real and Imaginary Surface.
Cuthbert Nyack
The transfer function of a system with 2 poles and 2 zeros
is shown below:-
At any point (zr, zi) in the Z plane, the magnitude of G(z) can
be obtained by setting z = zr + j zi and finding the modulus
of G(z).
Applet below shows magnitude(Fn = 0), phase(Fn = 1), real(Fn = 2) and imaginary(Fn = 3) parts
of the transfer function of a system with 2 poles and 2 zeros.
Parameters (0.8, 25, 0.4, 103, 16.0, 1.6, 0, 122, 30, 1.0) show the
magnitude.
Parameters (0.8, 25, 0.4, 103, 16.0, 1.6, 1, 35.0, 60.0, 1.0) show the
phase.
Parameters (0.8, 25, 0.4, 103, 14.0, 1.6, 2, 150, 40, 1.0) show the
real part.
Parameters (0.8, 25, 0.4, 103, 14.0, 1.6, 3, 130, 70, 1.0) show the
imaginary part.
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Copyright 2000 © Cuthbert A. Nyack.