中国民航大学学报 ›› 2021, Vol. 39 ›› Issue (5): 11-15.

• 民用航空 • 上一篇    下一篇

正交频分复用复基带信号构造方法

刘海涛,张 琦,李冬霞   

  1. (中国民航大学天津市智能信号与图像处理重点实验室,天津 300300)
  • 收稿日期:2020-09-23 修回日期:2020-09-23 接受日期:2020-08-07 出版日期:2021-10-20 发布日期:2021-10-31
  • 作者简介:刘海涛(1966—),男,河北深州人,教授,博士,研究方向为航空移动通信系统。
  • 基金资助:
    国家自然科学基金民航联合研究基金项目(U1733120)

Construction method of complex baseband signal for orthogonal frequency division multiplexing system

LIU Haitao, ZHANG Qi, LI Dongxia   

  1. Intelligent Signal and Image Processing Key Lab of Tianjin, CAUC, Tianjin 300300, China
  • Received:2020-09-23 Revised:2020-09-23 Accepted:2020-08-07 Online:2021-10-20 Published:2021-10-31

摘要:

基于频域的正交频分复用复基带信号的构造方法,以 LTElong term evolution)系统技术规范为基础,分析给出 LTE 系统正交频分复用复基带信号的构造方法,并给出低复杂度正交频分复用复基带信号的工程生成方法,验证基于频域的正交频分复用复基带信号构造方法的正确性,最后基于 MatlabWinIQSim,射频信号源及频谱分析仪组成的实验环境证明所阐述构造方法的正确性。

关键词: 正交频分复用, 复基带信号产生, 频域

Abstract: Through the illustration of frequency domain of orthogonal frequency division multiplexing system, the construction method of complex baseband signal for LTE orthogonal frequency division multiplexing system based on LTE standard is analyzed and proposed to corroborate the proposed method, and a lower complexity engineering implementation method of complex baseband signal for orthogonal frequency division multiplexing system is also presented. An experimental environment based on Matlab, WinIQSim and radio frequency(RF) signal source is constructed and the proposed method is proved correct. 

Key words: orthogonal frequency division multiplexing(OFDM), complex baseband signal generation, frequency domain

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