用于流星突发通信系统的RLS分数间隔均衡器  

An RLS Fractionally Spaced Equalizer Used for Meteor Burst Comm unication System

作　　者：孙锦华[1] 金力军[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,西安710071

出　　处：《通信技术》2003年第8期7-8,24,共3页Communications Technology

基　　金：国家十五军事预研项目基金资助(基金编号:110010303)

摘　　要：将RLS分数间隔均衡器(FSE)用于流星突发通信系统中抗码间干扰,与波特间隔均衡器(SRE)相比,分数均衡器具有对采样相位选择的不敏感,且能够补偿固有的信道畸变的优良性能。理论分析和仿真结果表明,分数间隔均衡器和波特间隔均衡器具有几乎相同的收敛速度,但分数间隔均衡器比波特间隔均衡器具有较小的均方误差,均方误差性能可以改善1-2个数量级。另外,分数间隔均衡器的均方误差性能受信噪比的影响要明显小于波特间隔均衡器。This paper presents an RLS fractionally spaced equal iz er(FSE)used to cancel intersymbol interference in the meteor burst communicati on system.Compared with symbol rate equalizer(SRE),FSE has the advantages of insensiti vity to the choice of sampler phase and the ab ility to compensate fo r the inherent distortion of channels.Theoretical analysis and comput-er simu lation result show that FSE has the same convergence speed as SRE,b ut FSE has smaller mean squared error with an enhancement of one to two orders of ma gnitud e than that of SRE.In addition,the performance of mean squared error in FSE is evidently less influenced by the ratio of signal to noise.

关 键 词：RLS 分数间隔均衡器 波特间隔均衡器 流星突发通信 

分 类 号：TN91[电子电信—通信与信息系统]