E1无差错传输系统的设计方案  

Design of E1 Error-free Transmission System

作　　者：周小会[1] 傅永根[1] 

机构地区：[1]南京邮电大学,南京210003

出　　处：《电信工程技术与标准化》2009年第1期12-16,共5页Telecom Engineering Technics and Standardization

摘　　要：通信系统的可靠性非常重要。E1上的无差错传输设备就是为系统可靠性服务的。该方案采用ATmega128为处理器平台,用FPGA完成同步捕捉。发送端完成对一路E1信号的两路复制,接收端接收两路不同路由的输入信号并捕捉其相互同步,完成两路信号接收状况检测,比较,择优输出。Reliability of communication system is very important. E1 error-free transmission device, called EFTD, is then developed for this purpose. The equipment uses ATmega128 as the processor platform, while uses FPGA to capture synchronization. In transmitter of EFTD the E1 signal is duplicated and then transmitted through two routes, while in receiver the two signals with different delay should be received and keep mutual coherence. These two signals are error checked and compared. The better one is then chosen ...

关 键 词：E1 无差错传输 择优输出 

分 类 号：TN929.5[电子电信—通信与信息系统]