三网融合中电话信号的预处理  

Telephone Signal Preprocessing in Triple Play

作　　者：商萃萃 王树华[1] 鲁坤[1] 王宝兴[1] 

机构地区：[1]聊城大学物理科学与信息工程学院,山东聊城252059

出　　处：《电声技术》2014年第4期79-81,85,共4页Audio Engineering

摘　　要：目前,光纤入户已成为实现三网融合的最终解决方案。三网融合的关键技术是三种业务的融合,为了解决这一问题,在PPP的传输模式下,给出了三网融合框图;对公用电话网中E1帧的各路电话信号进行了提取,以满足交换模块对各种信号进行数据交换的要求。主要给出了对E1帧进行预处理的结构图及算法,最后利用QuartusⅡ软件对E1帧的15路电话信号的提取进行了仿真。仿真结果表明,对E1帧进行预处理的方法可行。Currently, FTTH has become the final solution of three nets fusion. The key technology of three nets fusion is the fusion of three kinds of business. In order to solve this problem, one block diagram of three nets fusionin the trans- mission mode of PPP is given. In this paper, each telephone signalfrom the E1 frame of the public telephonenetwork is extracted,in order to meet therequirements of data exchange on various signal for the exchange module. Structure chart and the algorithm of the Pre - processing E1 frame are mainly presented. At last, using Quartus I] to simulate the extrac- tion of 15 telephone signalsfrom the E1 frame. The simulation results show that the method of Pre - processing E1 frame is workable.

关 键 词：三网融合 E1帧结构 算法 仿真波形 

分 类 号：TN916[电子电信—通信与信息系统]