Adaptive filtering in subbands with critical sampling: analysis, experiments, and application to acoustic echo cancellation
- 1 January 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Signal Processing
- Vol. 40 (8) , 1862-1875
- https://doi.org/10.1109/78.149989
Abstract
An exact analysis of the critically subsampled two-band modelization scheme is given, and it is demonstrated that adaptive cross-filters between the subbands are necessary for modelization with small output errors. It is shown that perfect reconstruction filter banks can yield exact modelization. These results are extended to the critically subsampled multiband schemes, and important computational savings are seen to be achieved by using good quality filter banks. The problem of adaptive identification in critically subsampled subbands is considered and an appropriate adaptation algorithm is derived. The authors give a detailed analysis of the computational complexity of all the discussed schemes, and experimentally verify the theoretical results that are obtained. The adaptive behavior of the subband schemes that were tested is discusseKeywords
This publication has 21 references indexed in Scilit:
- Acoustic echo canceller with high speech qualityPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A filter family designed for use in quadrature mirror filter banksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A new structure for sub-band acoustic echo cancelerPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Analysis and design of multirate systems for cancellation of acoustical echoesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- A fast exact least mean square adaptive algorithmIEEE Transactions on Signal Processing, 1992
- Lattice structures for optimal design and robust implementation of two-channel perfect-reconstruction QMF banksIEEE Transactions on Acoustics, Speech, and Signal Processing, 1988
- Fast FIR filtering: Algorithms and implementationsSignal Processing, 1987
- Convergence analysis of a frequency-domain adaptive filter with exponential power averaging and generalized window functionIEEE Transactions on Circuits and Systems, 1987
- A theory of multirate filter banksIEEE Transactions on Acoustics, Speech, and Signal Processing, 1987
- Polynomial transform implementation of digital filter banksIEEE Transactions on Acoustics, Speech, and Signal Processing, 1983