Rapid frequency-domain adaptation of causal FIR filters

  title={Rapid frequency-domain adaptation of causal FIR filters},
  author={S Elliott and Boaz Rafaely},
  journal={IEEE Signal Processing Letters},
Normalizing the convergence coefficient of the block frequency-domain least mean square (LMS) algorithm in each frequency bin can improve the convergence rate, but in some applications can lead to a biased steady-state solution if the filter is constrained to be strictly causal. An algorithm is presented in which the spectral factors of the bin-normalized convergence coefficient are used before and after the causality constraint is applied in the adaptation algorithm, which converges rapidly to… CONTINUE READING
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