数字用户环路技术

VDSL：下一代的数字用户环路技术

VDSL : The Next Generation Digital Subscriber Loop Technology

高比特率数字用户环路技术是在光纤用户网普及之前，向用户提供宽带业务的一种过渡手段。

The high-bit-rate digital subscriber line technology used to be a transitional means to provide subscribers with broadband sefores prior to the popularization of light-fiber subscriber networks .

数字用户环路传输技术的新发展

The New Development of Digital Subscriber Loop Transmission Technology

本文介绍了离散多音调制的基本原理、系统的构成，以及性能特点，介绍了不对称数字用户环路的技术特点、应用前景。

This paper present the basic principles , the system construction and the characteristics of DMT .

目前，非对称数字用户环路ADSL宽带技术倍受关注。

Presently , Asymmetric Digital Subscriber Line ( ADSL ) wideband technique is paid attention to extremely .

VDSL数字用户环路接入及其关键技术

VDSL Digital Loop Access and Key Technology

简单介绍了各种宽带接入技术，重点介绍了ADSL（非对称数字用户线环路）接入技术及其应用，并给出详细的系统设计方案。

This paper gives a brief introduction of the main broad bandwidth IP accessing technology . It focuses on the ADSL ( Asymmetrical Digital Subscriber Loop ) access system , and gives the system solution to ADSL in the modern distance education .