The Journal of the Acoustical Society of Korea

한국음향학회 (The Acoustical Society of Korea)
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Stability Evaluation for Estimated Impulse Response with a Feedforward Adaptive Control System

  • 발행 : 2002.06.01
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초록

This paper describes a new method of stability evaluation for an estimated impulse response of a plant. It is difficult for the conventional stability evaluation equation to be used in an adaptive feedforward control system which uses an immeasurable acoustic transfer system of a real plant, because the equation requires an exact true impulse response of the plant. Therefore, the usefulness of the conventional equation is limited in a computer simulation. The proposed method is applicable to not only a computer simulation but also a real feedforward adaptive control system. It is found that the system is stable when the value of misadjustment is below -10 dB through computer simulations and experiments. And also, it is proved that the error signal is stable through the verification using filtered reference and filtered error LMS methods.

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참고문헌

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