MODELING AND CHARACTERIZATION OF OSCILLATOR CIRCUITS BY VAN DER POL MODEL USING PARAMETER ESTIMATION-Reference-Cited by-同舟云学术

MODELING AND CHARACTERIZATION OF OSCILLATOR CIRCUITS BY VAN DER POL MODEL USING PARAMETER ESTIMATION

Published:2012-08 Issue:05 Volume:21 Page:1250043
ISSN:0218-1266
Container-title:Journal of Circuits, Systems and Computers
language:en
Short-container-title:J CIRCUIT SYST COMP

Author:

DUMITRESCU IULIA¹,BACHIR SMAIL²,CORDEAU DAVID²,PAILLOT JEAN-MARIE²,IORDACHE MIHAI¹

Affiliation:

1. Electrical Engineering Faculty, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania

2. laboratoire d'Automatique et d'Informatique, Industrielle de Poitiers LAII EA1219/ENSIP, University of Poitiers, 40 avenue du recteur Pineau, 86022 Poitiers Cedex, France

Abstract

In this paper, we present a new method for the modeling and characterization of oscillator circuit with a Van Der Pol (VDP) model using parameter identification. We also discussed and investigated the problem of estimation in nonlinear system based on time domain data. The approach is based on an appropriate state space representation of Van der Pol oscillator that allows an optimal parameter estimation. Using sampled output voltage signal, model parameters are obtained by an iterative identification algorithm based on Output Error method. Normalization issues are fixed by an appropriate transformation allowing a quickly global minimum search. Finally, the proposed estimation method is tested and validated using simulation data from a 1 GHz oscillator circuit in GaAs technology.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218126612500430

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