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  • Title: [Research of adaptive notch filter based on QRD-LS algorithm for power line interference in ECG].
    Author: Wang S, Dong J, Guan X.
    Journal: Sheng Wu Yi Xue Gong Cheng Xue Za Zhi; 2008 Oct; 25(5):1044-7. PubMed ID: 19024443.
    Abstract:
    In this paper, an adaptive notch filter based on QRD-LS algorithm for power line interference in ECG is researched. It can automatically eliminate the power line interference in order to improve the signal-to-interference ratio. Furthermore, QLD-LS algorithm, which is recursive least-squares minimization using systolic arrays, is employed to adjust the weight vector. Compared with the adaptive notch filter based on LMS (least mean square) algorithm, it has good robustness. Simulation examples confirm the results. QRD-LS adaptive notch filter has better performance in comparison with LMS method.
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