VDSL数字用户环路的调制方法分析

The Study of the Modulation Method for VDSL Digital Subscriber Lines

首先介绍了超高速数字用户环路(VDSL)的基本构造和线路编码,然后分析了VDSL的主要两种调制方法,即时分复用(TDD)方式和频分复用(FDD)方式。

This paper first introduces the basic structure and line code of VDSL,and then analyses two kinds of main modulation methods for VDSL,including time division du plex(TDD)and frequency divi-sion duplex(FDD).