A Polyphase and FFT Realization of Modulation Sub-band Adaptive Filter with Minimum Sampling Rate

フォーマット:

論文

責任表示:

Nakayama, Kenji ; Hirano, Akihiro ; Sakaguchi, H.

言語:

英語

出版情報:

IEEE(Institute of Electrical and Electronics Engineers), 1999-03-01

著者名:

• Nakayama, Kenji
• Hirano, Akihiro
• Sakaguchi, H.

掲載情報:

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

ISSN:

1548-3746      

巻:

3

開始ページ:

1485

終了ページ:

1488

バージョン:

publisher

概要:

A sub-band adaptive filter, in which modulation and demodulation are employed, were proposed. The sampling rate can be minimized, while no aliasing occurs. In this paper, a polyphase and FFT realization of this sub-band adaptive filter is proposed. In the polyphase and FFT realization for the transmultiplexer, the sampling rate reduction is the same as the number of the sub-bands. In the proposed method, however, they are different, so the conventional method cannot … be applied. In the new realization, the polyphase filters are divided into a tapped delay line and an FFT part so as to be shared by all the sub-bands. Computational complexity is well reduced compared with the direct realization. 続きを見る

URL:

http://hdl.handle.net/2297/6831