- #1
divB
- 87
- 0
Hi,
I have given a complex feedback system in z domain like:
Y = 2*W2 + E
W2 = z^-1/(1-z^-1) * (W1 + (1-z^-1)*W2 - 1/2*(1-z^-1)*Y)
W1 = V - Y + z^-1/(1-z^-1) * 1/2 * (V - Y)
where Y is the system output, V is the system input, W1 and W2 are intermediate nodes and E is an error input
I and want to get an expression like
Y(z) = E(z)*(...) + X(z)*(...)
i.e., the system output as a sum of the error input and the input. Alternatively: signal transfer function and error transfer function.
Just defining the terms as above and using Solve[] or so is not really successful.
Anyone a hint how to do that?
Thanks
divB
I have given a complex feedback system in z domain like:
Y = 2*W2 + E
W2 = z^-1/(1-z^-1) * (W1 + (1-z^-1)*W2 - 1/2*(1-z^-1)*Y)
W1 = V - Y + z^-1/(1-z^-1) * 1/2 * (V - Y)
where Y is the system output, V is the system input, W1 and W2 are intermediate nodes and E is an error input
I and want to get an expression like
Y(z) = E(z)*(...) + X(z)*(...)
i.e., the system output as a sum of the error input and the input. Alternatively: signal transfer function and error transfer function.
Just defining the terms as above and using Solve[] or so is not really successful.
Anyone a hint how to do that?
Thanks
divB