宽带多天线无线传输技术发展展望  

Development of Broadband Multi-antenna Wireless Transmission Technology

作　　者：金红军[1] 

机构地区：[1]中国电子科技集团公司第五十研究所,上海200063

出　　处：《通信技术》2016年第12期1575-1581,共7页Communications Technology

摘　　要：目前,战术通信系统带宽窄、速率低、机动性差,同时多径传播引起选择性衰落,产生严重干扰,导致系统性能下降,已经不能满足日益增长的高速数据业务需求。针对这些问题,提出多天线多载波(MIMO+OFDM)技术体制,介绍其发展现状、基本原理、关键技术以及主要优势、特点和存在问题,提出更高带宽、更高速率、更高移动性和更高频段,将成为未来发展趋势和重点应用研究方向,这也将极大推动战术通信跨越式发展。At present, the tactical communication system, for its narrow bandwidth, low speed and poor mobility, including, selective fading caused by multipath propagation, and serious interference, which would result in the performance degradation, could not meet the growing demand for high speed data service. To solve these problems, the multi-antenna multi-carrier （MIMO＋OFDM） technical system is proposed, its development status, basic principle and key technology decribed, and main advantages, characteristics and existing problems discussed, and the system with even higher bandwidth, higher speed, higher mobility and higher frequency would become the trend of development and the direction of key application research. And all these would greatly promote the great-leap-forward development of tactical communication.

关 键 词：战术通信 多天线 MIMO+OFDM技术 预编码 波束赋形 

分 类 号：TN929.53[电子电信—通信与信息系统] TN915.851[电子电信—信息与通信工程]