Title :
On the optimality of subband adaptive filters
Author :
Weiss, Stephan ; Stewart, Robert W.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
In this paper, we derive a polyphase analysis to determine the optimum filters in a subband adaptive filter (SAF) system. The structure of this optimum solution deviates from the standard SAF approach and presents its best possible solution only as an approximation. Besides this new insight into SAF error sources, the discussed analysis allows to calculate the optimum subband responses and the standard SAF approximation. Examples demonstrating the validity of our analysis and its use for determining SAF errors are presented
Keywords :
acoustic signal processing; adaptive filters; error analysis; optimisation; acoustics; error sources; optimality; optimum filters; optimum solution; optimum subband responses; polyphase analysis; subband adaptive filters; Acoustics; Adaptive filters; Band pass filters; Filter bank; Integrated circuit synthesis; Performance analysis; Signal analysis; Signal processing; Signal synthesis; System identification;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 1999 IEEE Workshop on
Conference_Location :
New Paltz, NY
Print_ISBN :
0-7803-5612-8
DOI :
10.1109/ASPAA.1999.810849
