A measure of aliasing energy in multiresolution signal decomposition

Author

Akansu, Ali N. ; Caglar, Hakan

Author_Institution

Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA

Volume

4

fYear

1992

fDate

23-26 Mar 1992

Firstpage

621

Abstract

An analysis of band energy distributions in perfect reconstruction (PR) multirate systems is presented, and the effects of aliasing are evaluated. A performance measure called nonaliasing energy ratio (NER) is defined. The merit of the new measure is emphasized with performance comparisons of the popular block transforms and two-band PR-QMF based hierarchical filter banks. It is shown that the new measure complements the widely used energy compaction measure and is consistent with the subjective performance results

Keywords

digital filters; filtering and prediction theory; signal processing; aliasing energy; band energy distributions; block transforms; multiresolution signal decomposition; nonaliasing energy ratio; perfect reconstruction multirate systems; performance comparisons; quadrature mirror filter; signal processing; two-band PR-QMF based hierarchical filter banks; Band pass filters; Compaction; Energy measurement; Energy resolution; Filter bank; Frequency; Interpolation; Signal analysis; Signal processing; Signal resolution;

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.1992.226321

Filename

226321