Robust rational function approximation algorithm for model generation

Author

Coelho, Carlos P. ; Phillips, Joel R. ; Silveira, L. Miguel

Author_Institution

Dept. of Electr. & Comput. Eng., INESC/Cadence Eur. Labs., Lisbon, Portugal

fYear

1999

fDate

1999

Firstpage

207

Lastpage

212

Abstract

The problem of computing rational function approximations to tabulated frequency data is of paramount importance in the modeling arena. In this paper, we present a method for generating a state space model from tabular data in the frequency domain that solves some of the numerical difficulties associated with the traditional fitting techniques used in linear least squares approximations. An extension to the MIMO case is also derived

Keywords

MIMO systems; circuit optimisation; circuit simulation; frequency-domain analysis; function approximation; least squares approximations; microwave filters; rational functions; state-space methods; surface acoustic wave filters; MIMO case; RF circuit components; SAW filter; circuit-level simulation; fitting techniques; frequency domain; linear least squares approximations; model generation; numerical difficulties; robust rational function approximation algorithm; state space model; tabulated frequency data; Approximation algorithms; Circuits; Frequency; Function approximation; Least squares approximation; Least squares methods; Microwave communication; Power system modeling; Robustness; State-space methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Design Automation Conference, 1999. Proceedings. 36th

Conference_Location

New Orleans, LA

Print_ISBN

1-58113-092-9

Type

conf

DOI

10.1109/DAC.1999.781313

Filename

781313