Abstract
It is shown that reduced order models produced by the least-squares Padé method for discrete-time systems can sometimes produce misleading results for step and polynomial inputs. A more representative way of deriving such models is put forward and a numerical example is given to illustrate the points raised in the discussion.
Original language | English |
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Pages (from-to) | 61-64 |
Number of pages | 4 |
Journal | Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering |
Volume | 213 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Feb 1999 |
Keywords
- Padé approximation
- Order reduction
- Least-squares method
- Discrete-time systems