Biorthogonal cosine-modulated filter bank

Author

Nguyen, Truong Q. ; Heller, Peter N.

Author_Institution

Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA

Volume

3

fYear

1996

fDate

7-10 May 1996

Firstpage

1471

Abstract

Cosine-modulated filter banks have been studied extensively because of their design ease and efficient implementation. These filter banks either have restricted lengths or assume the paraunitary property for the polyphase matrices. In this paper, the biorthogonal cosine-modulated filter bank with arbitrary length is considered and the perfect reconstruction (PR) conditions are derived. These conditions are the general form of the PR conditions reported in the literature. Examples of PR systems with variable overall delay are designed using the quadratic constrained least squares formulation

Keywords

delays; digital filters; least squares approximations; matrix algebra; modulation; signal reconstruction; PR conditions; QCLS formulation; biorthogonal cosine-modulated filter bank; delay; design; implementation; paraunitary property; perfect reconstruction conditions; polyphase matrices; quadratic constrained least squares; Cost function; Delay systems; Equations; Filter bank; Prototypes; Quantum cascade lasers; Sufficient conditions;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543940

Filename

543940