VDSL2串音消除的关键技术  

Key Technologies for Crosstalk Cancellation in VDSL2

作　　者：汪坤[1] 

机构地区：[1]信息产业部电信研究院泰尔实验室

出　　处：《现代电信科技》2007年第3期52-58,共7页Modern Science & Technology of Telecommunications

摘　　要：随着带宽的增加和环路距离的减小,串音(Crosstalk)已经成为VDSL2系统中的主要干扰因素。介绍了目前ITU-T提出的几种主流的针对串音问题的解决方案,尤其重点描述了近来的研究热点——串音消除技术,并对其中的关键算法进行了归纳和分析。Along with the increase of bandwidth and the decrease of loop distance, crosstalk has become the primary interference factor in VDSL2 system. This article introduces several solutions proposed by ITU-T aiming at solving the crosstalk problems, then describes the crosstalk cancellation technology in detail, and summarizes and analyzes the key point of arithmetic of crosstalk cancellation at last.

关 键 词：VDSL2 串音 虚拟噪声 动态频谱管理 远端串音消除 

分 类 号：TN912.12[电子电信—通信与信息系统]