Title :
Aliasing reduction in sub-bands of cascaded filter banks with decimation
Author_Institution :
Inst. fur Theor. Nachrichtentech. und Informationsverarbeitung, Hannover Univ., Germany
fDate :
6/4/1992 12:00:00 AM
Abstract :
A method for the reduction of aliasing in sub-band signals of cascaded filter banks with decimation is presented. The aliasing reduction is achieved by simple butterfly operations between filter bank outputs without influencing the reconstruction properties of analysis/synthesis systems.
Keywords :
cascade networks; crosstalk; digital filters; frequency response; signal processing; speech analysis and processing; aliasing reduction; audio codec; butterfly operations; cascaded filter banks; crosstalk reduction; decimation; frequency response; speech processing; subband signals; two stage cascade;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920697
