Joint use of time-domain and windowed method for 
design of modulated DFT filter banks

doi:10.1016/S1005-8885(13)60095-3

中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (5): 91-96.doi: 10.1016/S1005-8885(13)60095-3

• Computer Science • 上一篇下一篇

Joint use of time-domain and windowed method for design of modulated DFT filter banks

庄陵¹,计翔¹,邵凯¹,王光宇²

Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

收稿日期:2013-03-05 修回日期:2013-09-02 出版日期:2013-10-30 发布日期:2013-10-29
通讯作者: 计翔 E-mail:longyue1022@163.com
基金资助:
This work was supported by the National Natural Science Foundation of China (61071195), the Sino-Finland Cooperation Project (1018), the Chongqing Educate Commission Project (KJ100501).

Joint use of time-domain and windowed method for design of modulated DFT filter banks

Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2013-03-05 Revised:2013-09-02 Online:2013-10-30 Published:2013-10-29
Supported by:
This work was supported by the National Natural Science Foundation of China (61071195), the Sino-Finland Cooperation Project (1018), the Chongqing Educate Commission Project (KJ100501).

摘要/Abstract

摘要： A novel and efficient technique to design modulated discrete Fourier transform (DFT) filter banks is introduced in this paper. The proposed method first relaxes the limits that the synthesis filters are the time-reversed version of the analysis filters and then adopts the time domain formula of the perfect reconstruction property as the solution to design the synthesis filters. The prototype filter in analysis filter banks is designed based on Fourier-Kaiser window approach. Simulation results show that the designed filter banks approximately satisfy the perfect reconstruction with controllable reconstruction errors.

关键词: time-domain formula, DFT filter banks, prototype filter design, filter banks design

Abstract: A novel and efficient technique to design modulated discrete Fourier transform (DFT) filter banks is introduced in this paper. The proposed method first relaxes the limits that the synthesis filters are the time-reversed version of the analysis filters and then adopts the time domain formula of the perfect reconstruction property as the solution to design the synthesis filters. The prototype filter in analysis filter banks is designed based on Fourier-Kaiser window approach. Simulation results show that the designed filter banks approximately satisfy the perfect reconstruction with controllable reconstruction errors.

Key words: time-domain formula, DFT filter banks, prototype filter design, filter banks design

中图分类号:

TN914

ZHUANG Ling JI Xiang SHAO Kai WANG Guang-yu. Joint use of time-domain and windowed method for design of modulated DFT filter banks [J]. Acta Metallurgica Sinica(English letters), 2013, 20(5): 91-96.

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Joint use of time-domain and windowed method for design of modulated DFT filter banks

Joint use of time-domain and windowed method for design of modulated DFT filter banks

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