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Accurate macromodeling algorithm for time domain identification of transient port responses
Author(s) -
Deschrijver D.,
Dhaene T.
Publication year - 2011
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.809
Subject(s) - orthonormal basis , transient (computer programming) , generalization , port (circuit theory) , time domain , frequency domain , algorithm , basis function , computer science , identification (biology) , domain (mathematical analysis) , control theory (sociology) , transient response , rational function , mathematics , electronic engineering , engineering , mathematical analysis , physics , artificial intelligence , botany , control (management) , electrical engineering , computer vision , biology , operating system , quantum mechanics
SUMMARY Orthonormal vector fitting is a robust method for broadband macromodeling of frequency domain responses. The use of orthonormal rational basis functions makes the conditioning of the system equations less sensitive to the initial pole specification when compared with the classical Vector Fitting procedure. This paper presents a time domain generalization of the technique to compute broadband rational macromodels from transient input–output port responses. The efficacy of the approach is illustrated by two numerical examples. Copyright © 2011 John Wiley & Sons, Ltd.