TY - JOUR
T1 - An algebraic approach for the reconstruction of Chua's system
AU - Aguilar Ibáñez, Carlos
AU - Sira-RamÍrez, Hebertt
AU - Jorge Sanchez, H.
N1 - Funding Information:
This research was supported by the Coordinación de Posgrado e Investigación (CGPI-IPN) under research grants 20061128 and 20071088.
PY - 2008/3
Y1 - 2008/3
N2 - An algebraic approach is proposed for the fast, accurate, identification of the unknown parameters in Chua's chaotic oscillator. The proposed algorithm uses the availability of two measurable output voltage signals and produces an exact formula for the unknown parameters, which may be realized in terms of iterated convolutions. We show that Chua's system parameters are linearly identifiable, with respect to the two proposed measurable outputs, thus allowing us to obtain a linear system for the unknown parameters from where these unknowns are readily obtained. Suitable algebraic operations on the output differential equations make the proposed algorithm independent of the unavailable initial conditions of the underlying nonlinear dynamical system and robust with respect to high frequency output measurement noises. Suitable algorithm reinitialization, or resetting of the integrations, allow for the efficient computation of piecewise constant varying parameters. Convincing computer simulations are presented and discussed.
AB - An algebraic approach is proposed for the fast, accurate, identification of the unknown parameters in Chua's chaotic oscillator. The proposed algorithm uses the availability of two measurable output voltage signals and produces an exact formula for the unknown parameters, which may be realized in terms of iterated convolutions. We show that Chua's system parameters are linearly identifiable, with respect to the two proposed measurable outputs, thus allowing us to obtain a linear system for the unknown parameters from where these unknowns are readily obtained. Suitable algebraic operations on the output differential equations make the proposed algorithm independent of the unavailable initial conditions of the underlying nonlinear dynamical system and robust with respect to high frequency output measurement noises. Suitable algorithm reinitialization, or resetting of the integrations, allow for the efficient computation of piecewise constant varying parameters. Convincing computer simulations are presented and discussed.
KW - Chaos
KW - Chua's circuit
KW - Reconstruction
UR - http://www.scopus.com/inward/record.url?scp=45149121971&partnerID=8YFLogxK
U2 - 10.1142/S0218127408020677
DO - 10.1142/S0218127408020677
M3 - Artículo
SN - 0218-1274
VL - 18
SP - 827
EP - 834
JO - International Journal of Bifurcation and Chaos
JF - International Journal of Bifurcation and Chaos
IS - 3
ER -