Disturbance Observer for Estimating Higher Order Disturbances in Time Series Expansion

  title={Disturbance Observer for Estimating Higher Order Disturbances in Time Series Expansion},
  author={Kyung-Soo Kim and Keun-Ho Rew and Soohyun Kim},
  journal={IEEE Transactions on Automatic Control},
In the note, a generalized disturbance observer capable of estimating higher order disturbances in the time series expansion is newly proposed. Initiated from a constant disturbance observer, we extend it systematically to cope with ramp disturbance and general order disturbances. The generalized form for disturbance observer exhibits the novel structure incorporating the system model and integrals. To be practical, the noisy measurement and the performance in the frequency domain are addressed… CONTINUE READING
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