基于直序扩频的低信噪比条件下的Turbo编码研究  

Research on Turbo Coding with Low SNR Based on Direct Sequence Spread Spectrum

作　　者：彭浩 PENG Hao(Changsha Radio and Television Bureau,Broadcasting And TV Transmission Center,Changsha 410007,China)

机构地区：[1]长沙广播电视发射中心,湖南长沙410007

出　　处：《数字通信世界》2021年第6期88-90,95,共4页Digital Communication World

摘　　要：随着通信技术的不断发展,一些通信设备需要在通信环境恶劣,噪声干扰影响较大的环境下保证信源消息的稳定传输,这给通信系统设计带来了巨大的挑战。针对通信设备工作在低信噪比情况下信息传输可靠性难以保证的问题,结合了直接序列扩频技术和二进制偏移载波调制技术,设计了一种可以适应用于低信噪比下通信Turbo编码,通过实验验证相比起其他单一使用的技术,提出的编码能够显著降低通信传输中的误码率,达到保证通信系统可靠性的效果。With the continuous development of communication technology,some communication equipment needs to ensure the stable transmission on bad communication environment,which brings a great challenge to the design of communication system.This paper focuses on this problem,designs a suitable for communication under low SNR Turbo coding.The experiment shows that the proposed methods superb than any other single use of technology,the proposed encoding can signifi cantly reduce the bit error rate in the communication and transport,which ensure the reliability of communication system.

关 键 词：TURBO编码 直接序列扩频技术 二进制偏移载波调制技术 

分 类 号：TN9[电子电信—信息与通信工程]