Abstract
A frequency domain approach for reducing linear, time-invariant systems is presented which produces stable approximations of stable systems. The method is based upon the Schwarz canonical form and is shown to have a continued-fraction representation. A link between this method and the popular Routh approximation is also given. Further, the Schwarz approximation is combined with a moments-matching technique to improve steady-state responses to step and polynomial inputs. Examples are given to illustrate the methods.
| Original language | English |
|---|---|
| Pages (from-to) | 1167-1178 |
| Number of pages | 12 |
| Journal | International Journal of Control |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1983 |
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Cite this
Lucas, T. N., & Davidson, A. M. (1983). Frequency-domain reduction of linear systems using Schwarz approximation. International Journal of Control, 37(5), 1167-1178. https://doi.org/10.1080/00207178308933038