Application Of Wiener Series For Assessment Of The Quality Of The NARMAX
Model Of Dynamic Loudspeakers
Author(s)
A. Dobrucki & P. Pruchnicki
Abstract
Application of Wiener series for assessment of
the quality of the NARMAX model of dynamic
loudspeakers
A. Dobrucki & P. Pruchnicki
Wroclaw University of Technology, Institute of Telecommunications and
Acoustics, Poland
Abstract
The polynomial representation of the NARMAX model of a dynamic
loudspeaker is presented. To compare different models one needs a quality criterion.
The simplest quality measure is the difference between the model output
signals and the object (the actual loudspeaker) output signals if the same input
signal is used. But this measure provides no information about the characteristics
of either the model or the actual loudspeaker. The information can be obtained
from the Volterra series or from its orthogonal version called the Wiener series.
The latter has been applied to an actual loudspeaker and its NARMAX model.
Euclid's norm was used to determine the difference between the Wiener series of
the loudspeaker and that of its model.
The model's accuracy was verified for dy
Keywords
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