標題: | SUBBAND ADAPTIVE FILTERING USING APPROXIMATELY ALIAS-FREE COSINE MODULATED FILTERBANKS |
作者: | Chang, Yin-Shao Phoong, See-May Lin, Yuan-Pei 電控工程研究所 Institute of Electrical and Control Engineering |
公開日期: | 2008 |
摘要: | In this paper, we use a class of cosine modulated filter-ank (CMFB) with approximately reconstruction property for subband adaptive filtering. We show that even after the subband filters are included, the CMFB maintains the approximately alias-free property. In earlier designs, when the filterbank has real coefficients, the alias-free property is usually destroyed after subband filters are inserted. The CMFB has real coefficients and the computational complexity for filtering and subband adaptation is less than that of complex-valued filterbanks. Numerical simulations will be given to demonstrate its approximately alias-free property and fast convergence. |
URI: | http://hdl.handle.net/11536/31787 |
ISBN: | 978-1-4244-2341-5 |
期刊: | 2008 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS 2008), VOLS 1-4 |
起始頁: | 1438 |
結束頁: | 1441 |
顯示於類別: | 會議論文 |