DMR标准物理层接收算法设计  

Receiving algorithm for DMR standard physical layer

作　　者：杨青山 王冬海 胡汉武 

机构地区：[1]广州海格通信集团股份有限公司,广东广州510663

出　　处：《现代电子技术》2014年第15期70-72,共3页Modern Electronics Technique

摘　　要：DMR物理层标准采用的是4FSK调制技术,其具有TDMA双时隙结构、频谱效率高、通信距离远、抗干扰能力强以及语音数据业务功能丰富等特点。DMR标准提高了频谱使用率,扩大了通信容量,提高了沟通效率,节约了使用成本,使用户获得高效的无线通信服务。在此介绍了一种基于差分解调结构的接收算法,该算法易于实现,并且接收灵敏度满足DMR测试指标。4FSK technology is adopted in DMR physical layer standard,which has the characteristics of TDMA double time-slot structure,high spectrum efficiency,long communication distance,strong anti-interference ability and rich voice data ser-vice. DMR standard can improve the spectrum utilization,enlarge communication capacity,enhance communication efficiency, save the usage cost,and allow users to obtain high-efficiency wireless communication service. A receiving algorithm based on dif-ferential demodulation structure is introduced in the paper. The algorithm can be realized easily,and its receiving sensitivity can meet DMR testing specification.

关 键 词：DMR 差分解调 物理层标准 时隙结构 

分 类 号：TN929.52[电子电信—通信与信息系统]