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This paper analyzes the performance of off-line secondary path modeling algorithms for narrowband active noise control (ANC) systems. The accuracy and convergence rate of adaptive system identification will be degraded by disturbance. A delayless filterbank is utilized to partition the full-band excitation and error signals in order to reduce the order of the secondary-path model and increase the...
Conventional parallel-form narrowband active noise control (ANC) systems use multiple adaptive filters that are updated by the same error signal. This paper performs theoretical analysis to show that the convergence rate of every adaptive filter will be degraded by the residual error components from other adaptive filters. We develop and analyze a complete parallel narrowband ANC system that uses...
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