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タイトル: A Polyphase and FFT Realization of Modulation Sub-band Adaptive Filter with Minimum Sampling Rate
著者: Nakayama, Kenji link image
Hirano, Akihiro link image link image
Sakaguchi, H.
中山, 謙二
平野, 晃宏
発行日: 1999年 3月
出版社(者): IEEE(Institute of Electrical and Electronics Engineers)
雑誌名: 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
キーワード: Computational complexity
Fast Fourier transforms
Signal detection
Polyphase filters
Subband adaptive filters
Adaptive filtering
抄録: 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.
URI: http://hdl.handle.net/2297/6831
資料種別: Conference Paper
版表示: publisher

このアイテムを引用あるいはリンクする場合は次の識別子を使用してください。 http://hdl.handle.net/2297/6831



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