Some further results on modulated/extended lapped transforms

Author

Padmanabhan, Mukund ; Martin, Ken

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

4

fYear

1992

fDate

23-26 Mar 1992

Firstpage

265

Abstract

Some further results on modulated and extended lapped transforms are reported. Sufficient conditions to ensure perfect reconstruction for extended lapped transforms are derived. These conditions are valid for transforms of length lM and place no restriction on l; in this respect they apply to a more general case than earlier derivations that constrained l to be even. Also, a new filter structure is reported for implementing the modulated lapped transform. It has a hardware complexity of O(M) as compared to O(M log M) for other implementations

Keywords

computational complexity; digital filters; filtering and prediction theory; linear algebra; transforms; extended lapped transforms; filter banks; filter structure; hardware complexity; linear algebraic interpretation; modulated lapped transform; perfect reconstruction; Artificial intelligence; Filtering; Hardware; Matrices; Modulation coding; Nonlinear filters; Prototypes; Sufficient conditions; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

1520-6149

Print_ISBN

0-7803-0532-9

Type

conf

DOI

10.1109/ICASSP.1992.226435

Filename

226435