## Hope: Hw-control systems design: a criical assessment

- Postlethwalte, S. D. O'Young, J.D.W. Gu
- X. FAC World Congress. MOnchen,
- 1987

- Published 1989 in 1989 American Control Conference

A mathematical formulation /1/ of the classical lead-lag design method leads to the same controller approximation or order reduction problem as it arises in more sophisticated modern design approaches as, e. g., LQG/LTR or IH¿-optimal design if these methods are applied to complex plant models (compare e. g. /2/): Given an ideal, but eventually… CONTINUE READING

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