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Normalised frequency-domain adaptive filter based on optimum block algorithm

Normalised frequency-domain adaptive filter based on optimum block algorithm

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A fast-convergence frequency-domain adaptive filter is described. A simple normalisation scheme in the frequency-domain optimum block algorithm (FOBA) is used to set the convergence factor separately in each frequency bin. This normalised FOBA (NFOBA) yields significant convergence improvements.

References

    1. 1)
      • W.B. Mikhael , F.H. Wu . Fast algorithms for block FIR adaptive digital filtering. IEEE Trans. , 1152 - 1160
    2. 2)
      • W.B. Mikhael , A.S. Spanias . A fast frequency-domain adaptive algorithm. Proc. IEEE , 80 - 82
    3. 3)
      • M.E. Deisher , A.S. Spanias . (1991) Real-time implementation of a frequency-domain adaptive filter on a fixed-point signal processing, ICASSP.
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