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TECHNICAL PAPERS

A Virtual Sensing Method for Tonal ANVC Systems

[+] Author and Article Information
Chau M. Tran

Mechanical & Aerospace Engineering Department, North Carolina State University, Box 7910/3211 Broughton Hall, Raleigh, NC 27695

Steve C. Southward

Thomas Lord Research Center, Lord Corporation, Cary, NC 27511

J. Dyn. Sys., Meas., Control 124(1), 35-40 (Jun 26, 2001) (6 pages) doi:10.1115/1.1435642 History: Received June 26, 2001
Copyright © 2002 by ASME
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References

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Figures

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Hybrid adaptive feedforward observer used in Virtual Sensing
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One-dimensional, closed-ended duct with a disturbance speaker at ξ=0 and a linear array of microphone sensors
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Experimental 1D duct with L=2.88 m and D=0.15 m
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Convergence of the adaptive coefficients g⁁c in simulation
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Convergence of the adaptive coefficients g⁁s in simulation
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Convergence of the physical quadratic output error in simulation
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Convergence of the virtual quadratic output error in simulation
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Convergence of the adaptive coefficients g⁁c in experiment
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Convergence of the adaptive coefficients g⁁s in experiment
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Convergence of the physical quadratic output error in experiment
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Convergence of the virtual quadratic output error in experiment

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