Modified fast Fourier transform in FBMC for satellite communications

作     者：Chaosan YANG Rongke LIU Ruifeng DUAN 

作者机构：School of Electronic and Information Engineering Beihang University School of Information Science and Technology Beijing Forestry University 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2017年第30卷第4期

页      面：1519-1527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 by the National Natural Science Foundation of China (No. 91438116) by the Program for New Century Excellent Talents in University of China (No. NCET-12-0030) by the National Hi-Tech R&D Program of China (No. 2015AA7014065) by the Shanghai Aerospace Science and Technology Innovation Fund (No. SAST2015089) 

主　　题：Doppler effect Fast Fourier transforms Filter bank multi carrier Inter carrier interference Inter symbol interference Signal to interference and noise ratio 

摘      要：In this paper,a Doppler scaling fast Fourier transform（Doppler-FFT）algorithm for filter bank multi-carrier（FBMC）is proposed,which can efficiently eliminate the impact of the Doppler scaling in satellite *** introducing a Doppler scaling factor into the butterfly structure of the fast Fourier transform（FFT）algorithm,the proposed algorithm eliminates the differences between the Doppler shifts of the received subcarriers,and maintains the same order of computational complexity compared to that of the traditional *** the process of using the new method,the Doppler scaling should be estimated by calculating the orbital data in ***,the inter-symbol interference（ISI）and the inter-carrier interference（ICI）can be completely eliminated,and the signal to interference and noise ratio（SINR）will not be *** results also show that the proposed algorithm can achieve a 0.4 d B performance gain compared to the frequency domain equalization（FDE）algorithm in satellite communications.