A subband adaptive filter with the optimum analysis filter bank

Authors:
H. Ochi;Y. Higa;S. Kinjo
Affiliations:
Dept. of Inf. Eng., Ryukyus Univ., Okinawa, Japan;Dept. of Inf. Eng., Ryukyus Univ., Okinawa, Japan;Dept. of Inf. Eng., Ryukyus Univ., Okinawa, Japan
Venue:
ICASSP '95 Proceedings of the Acoustics, Speech, and Signal Processing, 1995. on International Conference - Volume 02
Year:
1995

Citing 0
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Abstract

Conventional subband ADFs (adaptive digital filters) using filter banks have shown degradation in performance because of the non-ideal nature of filters. For this problem, we propose a new type of subband ADF incorporating two types of analysis filter bank. In this paper, we show that we can design the optimum filter bank which minimizes the LMSE (least mean squared error). In other words, we can design a subband ADF with less MSE than that of conventional subband ADFs.