phaseh.html

syntfil[PhaseH] - compute the phase of a filter transfer function

Calling sequence:

PhaseH(h)

Parameters:

h - filter transfer function

Description:

This function returns the phase as a function of .
Parameter h may contain only one variable.
Supposing H(s) represents transfer function, then the function PhaseH computes magnitude according following rule: .

Example:

> with(syntfil):

Definition of the transfer function

> h:=1/(s^3+2*s^2+2*s+1);

> PhaseH(h);

Phase frequency response

> plot(PhaseH(h)(omega),omega=0..3);