Title :
A new designing method of filter banks using all-pass polyphase filters
Author :
Wang, Wenbo ; Wang, Dejung
Author_Institution :
Dept. of Telecommun. Eng., Beijing Univ. of Posts & Telecomm., China
Abstract :
A new designing method for uniform filter banks using all-pass filters is presented. This method is based on the two-stage filter bank structure using all-pass filters. By using this method, the authors realized a continuous soft-band property for polyphase filters and analysis filter banks. Moreover, the realization of synthesis filter banks is given. which in cascade with analysis filter banks eliminates aliasing and amplitude distortions of the whole system. An example is discussed
Keywords :
all-pass filters; digital filters; all-pass polyphase filters; analysis filter banks; design; synthesis filter banks; two-stage filter bank structure; uniform filter banks; Band pass filters; Channel bank filters; Design methodology; Filter bank; Finite impulse response filter; Frequency; Phase distortion; Signal processing; Signal synthesis; Transfer functions;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226376
