This paper is aimed at identifying a dynamical model for an acoustic enclosure, a duct with rectangular cross section, closed ends, and side-mounted speaker enclosures. Acoustic enclosures are known to be resonant systems of high order. In order to design a high performance feedback controller for an acoustic enclosure, one needs to have an accurate model of the system. Subspace-based system identification techniques have proven to be an efficient means of identifying dynamics of high order highly resonant systems. In this paper a frequency domain subspace-based method together with a second iterative optimization step minimizing a frequency domain least-squares criterion is successfully employed to identify a dynamical model for an acoustic enclosure.
Subspace-Based System Identification for an Acoustic Enclosure
Contributed by the Technical Committee on Vibration and Sound for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received January 2001; revised January 2002. Associate Editor: J. Ginsberg.
McKelvey, T., Fleming, A., and Moheimani, S. O. R. (June 12, 2002). "Subspace-Based System Identification for an Acoustic Enclosure ." ASME. J. Vib. Acoust. July 2002; 124(3): 414–419. https://doi.org/10.1115/1.1467653
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