基于联合编码的GEO下行信道抗干扰技术研究  

Research on anti-interference technology of downlink-channel in GEO communication system coding

作　　者：王俊飞[1] 崔维嘉[1] 张刚[1] 张齐[2] 王大鸣[1] 

机构地区：[1]解放军信息工程大学,河南郑州450002 [2]北方计算中心,北京100091

出　　处：《电子技术应用》2014年第3期112-115,共4页Application of Electronic Technique

基　　金：国家863计划资助项目(2012AA01A502)(2012AA01A505)

摘　　要：鉴于频率资源受限的问题,采用同频组网的方式建立卫星移动通信系统,可以有效提高频谱使用效率。为此展开的相关技术研究成为该领域的一大热点。对基于LTE技术体制的同频组网卫星移动通信系统及其信道进行建模,并引入传统Block-Diagonalization预编码算法和三波束联合编码算法,对系统下行物理共享信道抗干扰性能进行了仿真分析,并就其算法适用性给出了相关的结论和建议,为系统建立提供理论研究基础。In view of the limited resources for satellite frequencies our applied,and the fact that organizing networks with the same frequency can effectively improve the spectrum efficiency,it＇s necessary to expand research with the related technology.This paper gives out the simulation analysis on anti-interference performance with physical downlink shared channel in the whole system,which introducing the traditional ground Block-Diagonalization precoding algorithm and the three beam joint coding algorithm through modeling the LTE technology system which organizing networks with the same frequency.Finally,we give out relevant conclusions and recommendations in algorithm applicability with the level of the mathematical model,which provides a theoretical research foundation for system establishment.

关 键 词：卫星移动通信 LTE Lutz信道模型 同频组网 同信道干扰 联合编码 

分 类 号：TN92[电子电信—通信与信息系统]