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Adaptive noise canceller with parallel block structure using variable step-size algorithm for a single sinusoidal detection
Author(s)
Benjangkaprasert, C.
Chompoo, S.
Anantrasirichai, N.
Takahashi, N.
Date Issued
December 1, 2004
Type
Conference Paper
Abstract
This paper proposes a new implementation of an adaptive noise canceller based upon a parallel block structure, which aims to raise the processing and convergence rates and to improve the steady-state performance. First, an IIR bandpass filter with a variable center angular frequency using adaptive Q-factor control and two adaptive control signal generators are realized by the parallel block structure. Secondly, a algorithm for adaptive Q-factor control with parallel block structure is proposed to improve the convergence characteristic. Furthermore, the steady-state performance of the filter is stabilized by using the normalized algorithm and the variable step size parameter for adaptive control of the center frequency. Finally, simulation results are given to demonstrate the convergence performance.
Citation
10th International Symposium on Integrated Circuits Devices and Systems Isic 2004 Integrated Systems on Silicon Proceedings, 293-296, 2004