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  • TITLE: A Single-Input Two-Output Feedback Formulation for ANC Problems
  • AUTHORS: Toochinda, Klawitter, Hollot and Chait
  • ABSTRACT: This paper explores inherent feedback limitations of active noise control in ducts by using a single-input, two-output framework and observing properties of closed-loop transfer functions. Performance is assessed using the plant and disturbance alignment angle. We show that the sound levels at the measurement microphone are amplified when attenuating acoustic energy at the error microphone. We also show that the stability margins can be improved over feedforward control using measurements from two sensors.
  • STATUS: Proceedings of American Control Conference, MM09-1, Arlington, VA 2001
  • full paper (.pdf, 289 KB)
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Last Updated: January 26, 2001

Copyright & COPY; 2001 University of Massachusetts, Amherst. Produced and maintained by the University of Massachusetts, Mechanical Engineering department. Comments to: chait@ecs.umass.edu. This is an official page of the Mechanical & Industrial Engineering Department. Updated: Spring, 2001.