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An active noise control system without secondary path model

✍ Scribed by Yoshinobu Kajikawa; Yasuo Nomura

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
236 KB
Volume
83
Category
Article
ISSN
1042-0967

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✦ Synopsis

In this paper, we propose an active noise control (ANC) system without secondary path model (C ^ filter). The proposed system is based on the simultaneous perturbation optimization method with block process. Consequently, the coefficients of the adaptive filter in the proposed system are updated by error signals only. The conventional ANC system using the Filtered-x algorithm becomes unstable due to the error between the secondary path from a secondary source to an error sensor and its model. On the other hand, the proposed ANC system has the advantage of becoming stable because of not using the model. In this paper, we show the principle of the proposed ANC system and also the effectiveness of this system by computer simulations.

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