0
TECHNICAL PAPERS

Subspace-Based System Identification for an Acoustic Enclosure

[+] Author and Article Information
Tomas McKelvey

Dept. of Signals and Systems, Chalmers University of Technology, DE-412 96 Gothenburg, Sweden

Andrew Fleming, S. O. Reza Moheimani

Dept. of Electrical and Computer Eng., University of Newcastle, Callaghan, NSW 2308, Australia

J. Vib. Acoust 124(3), 414-419 (Jun 12, 2002) (6 pages) doi:10.1115/1.1467653 History: Received January 01, 2001; Revised January 01, 2002; Online June 12, 2002
Copyright © 2002 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Plan view of the acoustic duct apparatus
Grahic Jump Location
The experimental acoustic enclosure
Grahic Jump Location
Magnitude response of the acoustic actuators from applied voltage to baffle acceleration
Grahic Jump Location
Magnitude transfer functions of parametric model estimate of order 29 from subspace algorithm and ETFE from validation data. The magnitude of the error also is shown. The transfer functions are derived from the applied actuator voltage to measured microphone preamp voltage. (-) Validation Data, (- -) Estimated model, (- ⋅ -) Error.
Grahic Jump Location
Final estimated model after parametric optimization of LS criterion. Magnitude and error plot showing estimated model of order 29 and ETFE from validation data. The transfer functions are derived from the applied actuator voltage to measured microphone preamp voltage. (-) Validation Data, (- -) Estimated model, (- ⋅ -) Error.
Grahic Jump Location
Time domain comparison between the simulated output of the estimated model and the measured output. The input and outputs are taken as the applied actuator voltage and microphone preamp voltage. (-) Validation Data, (- -) Estimated model, (- ⋅ -) Error.
Grahic Jump Location
Result from a real-time validation experiment comparing the simulated output of the estimated model and the measured output of the system. The input and outputs are taken as the applied actuator voltage and microphone preamp voltage. (-) Real time measurement, (- -) Estimated model, (- ⋅ -) Error.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In