Enhancement and Tracking of a Single Sinusoid in Noise Using Cumulant-Based IIR Adaptive Notch Filter.
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Accession number;01A0243527
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| Title;Enhancement and Tracking of a Single Sinusoid in Noise Using Cumulant-Based IIR Adaptive Notch Filter. |
| Author;
GHARIEB R R
(Assiut Univ., Egy)
HORITA Y
(Toyama Univ., Toyama-shi, Jpn)
MURAI T
(Toyama Univ., Toyama-shi, Jpn)
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Journal Title;IEICE Trans Fundam Electron Commun Comput Sci (Inst Electron Inf Commun Eng)
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Journal Code:F0699C
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ISSN:0916-8508
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VOL.E84-A;NO.2;PAGE.568-576(2001)
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| Figure&Table&Reference;FIG.6, TBL.2, REF.22 |
| Pub. Country;Japan |
| Language;English |
| Abstract;In this paper, a novel cumulant-based adaptive notch filtering technique for the enhancement and tracking of a single sinusoid in additive noise is presented. In this technique, the enhanced signal is obtained as the output of a narrow bandpass filter implemented using a second-order pole-zero constraint IIR adaptive notch filter, which needs only one coefficient to be updated. The filter coefficient, which leads to identifying and tracking the sinusoidal frequency, is updated using a suggested adaptive algorithm employing a recursive estimate of the kurtosis and only one-sample-lag point of a selected one-dimensional fourth-order cumulant slice of the input signal. Therefore, the proposed technique provides automatically resistance to additive Gaussian noise. It is also shown that the presented technique outperforms the correlation-based counterpart in handling additive non-Gaussian noise. Simulation results are provided to show the effectiveness of the proposed algorithm in comparison with the correlation-based lattice algorithm. (author abst.) |
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