应急领域中基于COFDM的无线传输系统研究和应用  

Research and Application Analysis of Wireless Transmission System Based on COFDM in Emergency Field

作　　者：李德伟 LI Dewei(Military Training Center, Navy Staff Headquarters, Beijing 100841, China)

机构地区：[1]海军参谋部军事训练中心

出　　处：《无线电工程》2019年第8期695-698,共4页Radio Engineering

摘　　要：为满足应急领域中高清图传的大速率、广覆盖、低时延和高可靠的性能需求,在研究分析编码正交频分复用(COFDM)技术的基础上,提出了基于COFDM技术的无线视频传输系统设计方案和应用方式。通过仿真实验对比发现,该系统可以有效地改善无线通信系统的编解码性能,实现了高清图像在复杂无线信道环境下的稳定可靠实时传输。In order to meet the high-speed,wide-coverage,low-latency and high-reliability performance requirements of high-definition image transmission in the emergency field,the COFDM(Coded Orthogonal Frequency Division Multiplexing) technology is studied and analyzed,and the design scheme and application mode of a wireless video transmission system based on COFDM are proposed.The results of simulation experiments show that the proposed system can effectively improve the codec performance of wireless communication systems,and implement stable and reliable real-time transmission of high-definition images in complex wireless channel environments.

关 键 词：编码正交频分复用 软件无线电 无线传输 

分 类 号：TN911[电子电信—通信与信息系统]