Noise Cancellation System Based on Active Noise Control : 2nd Report, Adaptive Control Method

The active noise cancellation technique has been developed recently. When a system characteristic, i.e., transfer function, changes, we must also change the coefficients to cancel the noise. In that case, we should utilize the adaptive control technique. This paper describes the problem when using t...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 57; no. 534; pp. 431 - 436
Main Authors SUZUKI, Seiichirou, HAYASHI, Takurou, NAGAYASU, Katsuyoshi, SARUTA, Susumu, TAMURA, Hiroshi
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.02.1991
Subjects
Active Noise Cancellation
Adaptive Control
Duct Noise
Experimental System
Simulation
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Summary:The active noise cancellation technique has been developed recently. When a system characteristic, i.e., transfer function, changes, we must also change the coefficients to cancel the noise. In that case, we should utilize the adaptive control technique. This paper describes the problem when using the adaptive control technique. A solution to this problem was considered by developing a simulation system with acoustic characteristics. We determined that the adapting process had a different characteristic of convergence according to signal periodicity. Finally, good agreement was obtained with experimental results of applying this solution to a rather short duct.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.57.431