基于ADSL技术的铜双绞线信道容量分析  

Analysis the Channel Capacity of Copper Twisted Pairs Based on ADSL

作　　者：张星梅 

机构地区：[1]兰州军区临潼疗养院,兰州710600

出　　处：《计算机与数字工程》2010年第3期48-50,134,共4页Computer & Digital Engineering

摘　　要：介绍了ADSL传输线路及铜制双绞线的线路特性,分析了高斯白噪声对传输线路的影响。详细介绍了注水算法理论,给出高斯白噪声下信道容量的计算方法及其MATLAB实现。最后通过分析讨论得出信道容量与线路长度,输入功率之间的关系,得出结论。This paper introduced ADSL transmission line and characteristic of the copper twisted lines.Analyzed the impact of AWGN on the transmission line.Detailedly gave the information of the water algorithm theory,and introduced the calculate measure of channel capacity under AWGN,then using MATLAB calculates the channel capacity.At the end,after analyzing and discussing,acquired the relationship between channel capacity and length of lines,input power.

关 键 词：非对称数字用户线路 离散多音频调制 铜双绞线信道容量 高斯白噪声 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]