This paper presents a model of sound propagation in a duct, for the purpose of active noise control. A physical model generally different from those explored in much of the literature is derived, with non-constant acoustic load impedance at the one end, and a coupled disturbance loudspeaker model at the other end. Experimental results are presented which validate the derived transfer function.
An Improved Acoustic Model for Active Noise Control in a Duct
Contributed by the Dynamic Systems, Measurement, and Control Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the ASME Dynamic Systems and Control Division September 7, 2001; final revision, March 29, 2003. Associate Editor: R. Mukherjee.
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Zimmer, B. J., Lipshitz , S. P., Morris, K. A., Vanderkooy, J., and Obasi, E. E. (September 18, 2003). "An Improved Acoustic Model for Active Noise Control in a Duct ." ASME. J. Dyn. Sys., Meas., Control. September 2003; 125(3): 382–395. https://doi.org/10.1115/1.1592192
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