Extended lapped transforms: properties, applications, and fast algorithms
Author:
- 1 November 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Signal Processing
- Vol. 40 (11) , 2703-2714
Abstract
The family of lapped orthogonal transforms is extended to include basis functions of arbitrary length. Within this new family, the extended lapped transform (ELT) is introduced, as a generalization of the previously reported modulated lapped transform (MLT). Design techniques and fast algorithms for the ELT are presented, as well as examples that demonstrate the good performance of the ELT in signal coding applications. Therefore, the ELT is a promising substitute for traditional block transforms in transform coding systems, and also a good substitute for less efficient filter banks in subband coding systems.Keywords
This publication has 21 references indexed in Scilit:
- Adaptive filtering in subbands with critical sampling: analysis, experiments, and application to acoustic echo cancellationIEEE Transactions on Signal Processing, 1992
- Modulated QMF filter banks with perfect reconstructionElectronics Letters, 1990
- On asymmetrical performance of discrete cosine transformIEEE Transactions on Acoustics, Speech, and Signal Processing, 1990
- Multirate digital filters, filter banks, polyphase networks, and applications: a tutorialProceedings of the IEEE, 1990
- Two-channel perfect-reconstruction FIR QMF structures which yield linear-phase analysis and synthesis filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- The use of orthogonal transforms for improving performance of adaptive filtersIEEE Transactions on Circuits and Systems, 1989
- Orthonormal bases of compactly supported waveletsCommunications on Pure and Applied Mathematics, 1988
- Eigenfilters: A new approach to least-squares FIR filter design and applications including Nyquist filtersIEEE Transactions on Circuits and Systems, 1987
- Analysis/Synthesis filter bank design based on time domain aliasing cancellationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
- On computing the discrete Fourier and cosine transformsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1985