Reduced order disturbance observer for discrete-time linear systems

  title={Reduced order disturbance observer for discrete-time linear systems},
  author={Kyung-Soo Kim and Keun-Ho Rew},
In the paper, an output-based disturbance observer of reduced order is presented for a class of discretetime linear systems. First, a general form of a disturbance observer is proposed when full states are available. Then, by combining a state function estimator of minimal order, an output-based disturbance observer is derived. The existence condition will be formulated in the form of a static output feedback. Through examples, the effectiveness and advantages of the proposed approach will be… CONTINUE READING
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