Title :
Cascading Wiener-Hammerstein systems
Author :
Dobrowiecki, Tadeusz P. ; Schoukens, Johan
Author_Institution :
Dept of Meas. & Inf. Syst., Budapest Univ. of Technol. & Econ., Hungary
fDate :
6/24/1905 12:00:00 AM
Abstract :
In this paper we study the cascading of weakly nonlinear systems. It is shown that the best linear approximation of the cascaded system is given by the product of the best linear approximation to the first and second nonlinear system respectively. This approximation is valid in the frequency range where both coherences of the individual linear approximations are high. In case both cascaded systems are Wiener-Hammerstein, the coherence provides also insight into the distribution of the dynamics over both system.
Keywords :
cascade systems; measurement theory; nonlinear systems; stochastic processes; FRF; Wiener-Hammerstein system; cascading; coherence; frequency response function; linear approximation; nonlinear distortions; weakly nonlinear systems; Additive noise; Ear; Frequency; Information systems; Linear approximation; Noise measurement; Nonlinear distortion; Nonlinear dynamical systems; Nonlinear systems; Uniform resource locators;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
Print_ISBN :
0-7803-7218-2
DOI :
10.1109/IMTC.2002.1007069