Title :
First estimates of Wiener and Hammerstein systems using multisine excitation
Author :
Crama, Philippe ; Schoukens, Johan
Author_Institution :
Vrije Univ., Brussels, Belgium
Abstract :
This paper presents fast methods to obtain a first estimate of Wiener or Hammerstein systems. For this purpose, a special excitation signal is introduced: the random phase multisine. Its properties are briefly stated and used in both methods. The methods are tested with simulations and compared with similar methods available in the literature. The paper finishes with an application of the presented methods to real-world measurements
Keywords :
nonlinear systems; parameter estimation; time-domain analysis; Hammerstein system; Wiener system; fast methods; first estimate; initialisation problem; multisine excitation; nonlinear models; random phase multisine; real-world measurements; simulations; Cost function; Degradation; Frequency domain analysis; Instrumentation and measurement; Noise level; Nonlinear dynamical systems; Optimization methods; Signal processing; Signal to noise ratio; Testing;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928295
