A delayless adaptive IFIR filterbank structure for wideband and narrowband active noise control
Signal Processing - Special section: Distributed source coding
Subband affine projection algorithm for acoustic echo cancellation system
EURASIP Journal on Applied Signal Processing
A unified framework for adaptive filter algorithms with variable step-size
Computers and Electrical Engineering
Selective partial update and set-membership subband adaptive filters
Signal Processing
Adaptive nonlinear system identification in the short-time fourier transform domain
IEEE Transactions on Signal Processing
A variable step-size matrix normalized subband adaptive filter
IEEE Transactions on Audio, Speech, and Language Processing
IEEE Transactions on Signal Processing
Subband adaptive filters with pre-whitening scheme for acoustic echo cancellation
KES'06 Proceedings of the 10th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part I
Computers and Electrical Engineering
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Subband adaptive filtering has attracted much attention lately. In this paper, we propose a new structure and a new formulation for adapting the filter coefficients. This structure is based on polyphase decomposition of the filter to be adapted and is independent of the type of filter banks used in the subband decomposition. The new formulation yields improved convergence rate when the LMS algorithm is used for coefficient adaptation. As we increase the number of bands in the filter, the convergence rate increases and approaches the rate that can be obtained with a flat input spectrum. The computational complexity of the proposed scheme is nearly the same as that of the fullband approach. Simulation results are included to demonstrate the efficacy of the new approach