How to compute Z-transform with Matlab?

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Li Hui Chew
Li Hui Chew 2021-7-18
回答: Ayush 2024-7-4,5:34
% equation given
y(n)= x(n)+2x(n-1)x(n-2)+y(n-1)-0.5y(n-2)
How to get the z-transform of the equation?
% for z-transform
syms y n
ztrans(1+1-0.5)
Is my approach correct?

回答(1 个)

Ayush
Ayush 2024-7-4,5:34
Hi,
To compute the Z-transform of the given equation, you can follow the below steps:
  1. Define the symbolic variables.
  2. Define the equation.
  3. Finally, the "ztrans" function is used to compute the Z-transform.
Refer to the example code below for better understanding:
% Define the symbolic variables
syms y(n) x(n) z
% Define the equation
eqn = y(n) == x(n) + 2*x(n-1)*x(n-2) + y(n-1) - 0.5*y(n-2);
% Compute the Z-transform
Z_transform = ztrans(eqn, n, z);
% Display the result
disp('The Z-transform of the equation is:');
disp(Z_transform);
For more information on the "ztrans" function, refer to the below documentation:

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