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@article{Matson1992MultiplicativeAO, title={Multiplicative Approximation of Multivariable Systems using IIankel Norm Criterion}, author={J. B. Matson and James T. K. Lam and B. D. O. Anderson and Ben James}, journal={1992 American Control Conference}, year={1992}, pages={333-337} }

- Published 1992 in 1992 American Control Conference

Control system design specifications are commonly given in terms of log-magnitude quantities (dB). This induces a multiplicative or relative error criterion for plant model reduction. Techniques from the theory of additive Hankel norm approximation and spectral factorization are synthesised to produce a multiplicative approximant of a possibly unstable or nonsquare plant. It is shown that the reduced-order model preserves the right half plane poles and zeros of the original system. Explicit… CONTINUE READING

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