Model simplification of stable discrete-time systems by the squared magnitude Pade approximation
- 1 April 1986
- journal article
- research article
- Published by Taylor & Francis in Journal of the Chinese Institute of Engineers
- Vol. 9 (3) , 267-274
- https://doi.org/10.1080/02533839.1986.9676888
Abstract
A squared magnitude Padé approximation technique is presented for the model simplification of stable discrete‐time systems. The simplification is started from the squared magnitude function M(ejTω ) =G(ejTω )G(e–jTω ), where G(z) is the z‐transfer function of a given high order discrete‐time system. The method is fully computer‐oriented and leads to a satisfactory approximation while preserving stability and minimum‐phase characteristics.Keywords
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