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Performance Improvement of the Analog ANC Circuit for a Duct by Insertion of an All-Pass Filter
Tatsuki HYODO Gaku ASAKURA Kiwamu TSUKADA Masashi KATO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/04/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Noise and Vibration
analog circuit, ANC, all-pass filter,
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This letter proposes an analog active noise control (ANC) circuit with an all-pass filter (APF). To improve performance of the previously reported analog ANC circuit, we inserted an APF to the circuit in order to fit phases of a noise and an electrical signal in the circuit. As a result, we confirmed improvement of the noise canceling effect of the analog ANC circuit.