Digital Channelization Technology for HF Communication Base on Fast Filter Bank

作     者：Yixin Fan Fanglin Gu Xiaobo Tan Ling Wang 

作者机构：College of Electronic and Information Engineering Hunan University College of Electronic Science National University of Defense Technology Model Office in Aerospace Industry Group CorporationPLA Rocket Force 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2018年第15卷第9期

页      面：35-45页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：supported in part by the National Natural Science Foundation of China under Grant 61601477  and 61601480 

主　　题：fast filter bank (FFB) high frequency (HF) channelization software defined radio (SDR) 

摘      要：Channelization typically realized by digital filter banks is an important topic in high frequency(HF) communication and software defined radios(SDR) areas. Channelization has a rigorous requirement for the characteristic of frequency response, e.g., steep transitional band and sharp decay. To address this issue, we investigated the feasibility and implementation of applying fast filter bank(FFB) in channelization in this paper. We analyzed the butterfly structure of FFB similar with fast Fourier transform(FFT), in which prototype sub-filters are cascaded to achieve a low complexity. Hence, it is suitable for designing filter bank with steep transitional band and sharp decay in stop-band. Moreover, we designed a pipelined structure of FFB to achieve a balance between area and performance. Design example shows that FFB has lower computational complexity compared with the other filter banks.