A New Active Sinusoidal Noise Control System Using the Simultaneous Equations Technique

Kensaku FUJII  Yoshihisa NAKATANI  Mitsuji MUNEYASU  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E85-A   No.8   pp.1877-1881
Publication Date: 2002/08/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Digital Signal Processing)
Category: Adaptive Signal Processing
active noise control,  sinusoidal noise,  secondary path,  simultaneous equations technique,  

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This paper proposes a new method to reduce sinusoidal noise components whose frequencies are known. The new method is based on the simultaneous equations technique. The technique does not require the secondary path filter: thereby the automatic recovering of the noise reduction effect deteriorated by secondary path changes becomes possible. This paper also presents computer simulation results to examine the performance of the new method.