差分Turbo-OFDM在短波数据通信中的应用研究  

Performance Analysis of Differential Turbo-OFDM in HF Data Communication

作　　者：王强[1] 孙锦涛[1] 叶晓东[1] 谢仁宏[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,南京210094

出　　处：《南京理工大学学报》2002年第2期144-147,共4页Journal of Nanjing University of Science and Technology

摘　　要：该文提出了将Turbo码与OFDM调制、差分检测技术相结合 ,分析了这种差分Turbo OFDM体制在短波数据通信中的应用可能。该体制具有较高的频率利用率 ,可有效地抑制短波信道中多径时延、频率选择性衰落、人为干扰与噪声带来的不利影响。仿真结果显示该体制提高了短波信道上数据通信的误码性能。A differential Turbo OFDM scheme with the combination of Turbo codes,orthogonal frequency division multiplexing (OFDM) modulation and differential detection is presented in this paper.The application of differential Turbo OFDM in high frequency (HF) data communication is investigated.This new scheme has the advantages of high spectrum efficiency and suppression of multipath spread,frequency selective fading,jamming and noise.Simulation results show that B performance can be improved by this scheme in HF data communication.

关 键 词：短波数据通信 TURBO码 正交频分复用 差分检测 短波通信 OFDM调制 

分 类 号：TN919.3[电子电信—通信与信息系统] TN911.22[电子电信—信息与通信工程]