高比特律数字用户环路HDSL ？
高速数字用户环路HDSL ？
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.
本文提出的系统尤其适合于固定无线系统和数字用户环路（DSL）。
The proposed system is of particular interest for fixed wireless systems and digital subscriber loops (DSL).
异步数字用户环路技术（ADSL）是在光纤用户网络普及之前，向用户提供宽带业务的一种过渡手段。
The asymmetric digital subscriber modulation technology is a transitional means to provide subscribers with broadband services prior to the popularization of light - fiber subscriber networks.
高比特数字用户环路(HDSL)技术是一种新的在双绞铜线上实现高速数据传输技术，有“铜光纤”之称。
HDSL is a new high-speed data transport technology realized over twisted-pair wires and is known as "copper optical fiber."
本文针对ISDN数字用户环路二线全双工的回波抵消传输方式，首先探讨了LMS、VLMS1自适应算法，并在此基础上提出改进的VLMS2算法。
This paper discusses firstly adaptive algorithms of LMS and VLMS1, being used widely in treating the problem of echo cancellation for full-duplex transmission in ISDN digital subscriber's loop.
用计算机仿真的方法在数字用户环路上实现了该算法，并测定其数字用户环路上所能获得的最大传码率，分析最大传码率与发送总功率的关系，给出比特分配结果。
On the digital subscriber loop we realized the algorithm, got the max receiving bit, analysed the relation between the max receiving bit and transmitted power, and got the result of bit allocation.
数字信道应包括用户到网络的连接线在内，即用户环路的传输也应是数字的。
The digital channel includes the circuit section between an end user and the network, that is to say, the transmission on the end user's loop should be digitalized as well.
数字信道应包括用户到网络的连接线在内，即用户环路的传输也应是数字的。
The digital channel includes the circuit section between an end user and the network, that is to say, the transmission on the end user's loop should be digitalized as well.
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