Title :
Linear approximation of weakly nonlinear MIMO systems
Author :
Dobrowiecki, Tadeusz P. ; Schoukens, Johan
Author_Institution :
Dept. of Meas. & Inf. Syst., Budapest Univ. of Technol. & Econ., Hungary
Abstract :
In this paper it is shown that a nonlinear MIMO system can be replaced by a linear system plus a nonlinear noise source. The optimized measurement strategy is proposed to measure the nonparametric FRF.
Keywords :
MIMO systems; Volterra series; frequency response; identification; nonlinear systems; random noise; Volterra systems; Wiener-Hammerstein block model; general random excitations; input-output relation; linear approximation; multiple input systems; nonlinear noise source; nonparametric frequency response function; optimized measurement strategy; power spectrum; weakly nonlinear MIMO systems; Additive noise; Kernel; Linear approximation; MIMO; Noise measurement; Nonlinear dynamical systems; Nonlinear systems; Shape measurement; Stochastic resonance; Stochastic systems;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351389
