The effect of discretized feedback in a closed loop system

@article{Hsu1987TheEO,
  title={The effect of discretized feedback in a closed loop system},
  author={Ping Hsu and S. Shankar Sastry},
  journal={26th IEEE Conference on Decision and Control},
  year={1987},
  volume={26},
  pages={1518-1523}
}
When a continuous time control law is implemented using a digital computer, the closed loop system may not have the same stability properties as the system with a true continuous controller due to delay and digitization errors. Using a Lyapunov analysis, this paper shows that, for linear systems and a class of nonlinear systems with discretized feedback, some stability properties can be preserved if the sampling frequency is properly chosen. In particular, we propose a variable sampling… CONTINUE READING
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