Adding noise to feedback in a transfer function
조회 수: 5 (최근 30일)
이전 댓글 표시
I would like to add Gaussian noise to a transfer function model, not at the input, but to the feedback term in the model. To simplify my system, lets say it is the prototypical closed loop http://en.wikipedia.org/wiki/Closed-loop_transfer_function with
Y/X = G/(1+G*H), where H represents negative feedback control block based on a measurement of the output.
I'd like to then use lsim to quantify the noise in the response to a sine wave input. How do I add 5% noise to the feedback signal, such that the noise is greater when there is greater mismatch between actual and desired signal? I.e. if Y is the output signal, I'd want to feedback Y' = Y*(1 + .1*randn(1)) at each point in time during a simulation. Is the only choice to implement the model numerical in discrete time?
댓글 수: 0
답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Dynamic System Models에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!