José Luís Silva, Fernando H. D. Guaracy, Luís H. C. Ferreira, J. B. Machado, C. Pinheiro
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A new approach on the target feedback loop parameterization in the discrete-time LQG/LTR control
This paper presents a new approach on the plant augmentation and target feedback loop parameterization for the discrete-time LQG/LTR control. With the proposed procedure, the bound on the sensitivity of the control loop can be associated with the behavior of the inverse of any real stable pole, ensuring good properties of disturbance rejection and tracking of reference signals in situations where the expansion of the plant by integrators is prohibitive or undesirable.