几类适用于G.fast频段数字用户线路信道模型  

Several Digital Subscriber Line Channel Models Suitable for G.fastFrequency

作　　者：李俏杰 LI Qiaojie(Scholl of Mathematics and Statistics,Guangdong University of Foreign Studies,Guangzhou,Guangdong 510006,China)

机构地区：[1]广东外语外贸大学数学与统计学院,广东广州510006

出　　处：《长江信息通信》2024年第1期124-128,共5页Changjiang Information & Communications

基　　金：广州市科技局基础与应用基础研究一般项目(No.202201010044)。

摘　　要：数字用户线路信道模型是用户通信线路质量,可开通接入速率评估和系统设计的重要基础,其信道模型在标准化工作中也具有重要的理论意义。该文总结了几类适用于G.fast频段数字双绞线信道模型,分别为利用传输线一次参数RLCG建立的BT模型,利用特征阻抗和传播系数建立的KM模型,以及利用传输线二次参数串联阻抗和并联导纳的KPN模型,对每个信道模型进行分析并给出详细的数学推导过程。The channel model of Digital Subscriber Line is an important issue for the evaluation of subscriber line quality,access rate and communication system design.It also has important theoretical significance in the standardization works.We summarize several types of digital twisted pair channel models suitable for G.fast frequency band,namely the BT model established using the primary parameters RLGC of the transmission line,the KM models established using characteristic impedance and propagation coefficient,and the KPN model established using the series impedance and parallel admittance of the transmission secondary parameters.Detailed analysis and mathematical derivation processes are provided for each channel model.

关 键 词：信道模型 接入速率 特征阻抗 串联阻抗 并联导纳 

分 类 号：TN913.32[电子电信—通信与信息系统]