Title :
N-parallel filter bank equivalent to tree structure
Author :
Akpa, Marcellin ; Steenaart, Willem
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
Abstract :
This paper presents the equivalent polyphase implementations of an N-channel filter bank based on an s-level tree structured filter bank. The realization employs a cascade of the filter´s polyphase components with distributed decimation followed by the NxN Hadamard matrix realizing a filter bank with real computations (real-valued filter coefficients) only, which is simple to realize
Keywords :
Hadamard matrices; fast Fourier transforms; filtering theory; low-pass filters; quadrature mirror filters; FFT; Hadamard matrix; N-parallel filter bank equivalent; cascade; distributed decimation; low pass filter; polyphase implementations; quadrature-mirror filter; real-valued filter coefficients; s-level tree structured filter bank; Discrete Fourier transforms; Filtering; Hadamard matrices; Low pass filters; Quadrature mirror filters;
Conference_Titel :
Electrical and Computer Engineering, 1994. Conference Proceedings. 1994 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-2416-1
DOI :
10.1109/CCECE.1994.405796
