Abstract
A method for the design of perfect reconstruction (PR) linear-phase prototypes for cosine-modulated filter banks with discrete coefficients is presented. Such prototypes are of great interest for efficient hardware implementations. The design procedure is based on a subspace approach that allows to linearly combine PR prototype filters in such a way that the resulting filter also is a PR prototype. Within a given subspace the weights of the optimal linear combination can be easily computed via an eigenanalysis. The filter design is carried out iteratively, while the PR property is guaranteed throughout the design process. No non-linear optimization routine is needed.
Original language | English |
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Title of host publication | Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181) |
Number of pages | 4 |
Publisher | IEEE |
Publication date | 01.12.1998 |
Pages | 1433-1436 |
Article number | 681717 |
ISBN (Print) | 0-7803-4428-6 |
DOIs | |
Publication status | Published - 01.12.1998 |
Event | 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing - Seattle, United States Duration: 12.05.1998 → 15.05.1998 Conference number: 101940 |