基于光纤传输的数据正反相位编解码系统  

Data positive and negative phase codec system based on optical fiber transmission

作　　者：赵会彬 马志敏 周俊华 朱付强 蔡娆娆 ZHAO Hui-bin;MA Zhi-min;ZHOU Jun-hua;ZHU Fu-qiang;CAI Rao-rao(XJ Electric Co., Ltd.,Xuchang 461000, Henan Province,China)

机构地区：[1]许继电气股份有限公司,河南许昌461000

出　　处：《信息技术》2019年第5期106-108,113,共4页Information Technology

摘　　要：文中分析了当前智能变电站系统光纤通信的特点,提出了一种数据正反相位编解码系统,并利用FPGA器件实现正反相位编解码器。光纤通信具有重量轻、体积小、传输频带宽、损耗低、不易串音、抗电干扰等优点,但是光纤通信中连续的长"0"和连续的长"1",都可能会增加光纤通信的误码率。首先FPGA产生数据的正相编码,接着程序对该数据反相编码,有效的避免了连续的长"0"和连续的长"1"。此方案充分利用了FPGA的并行数据处理的特性,提高了光纤通信的可靠性,提升了智能变电站系统的性能。This paper analyzes the characteristics of optical fiber communication in the current smart substation system,and proposes a data positive and negative phase codec system with FPGA. Optical fiber communication has advantages of light weight,small volume,wide transmission band,low loss,not easy to crosstalk,anti-electrical interference and so on. However,continuous "0"and continuous "1"may increase a bit error rate of optical fiber communication. Firstly,positive phase encoding of data is generated,and then the program encodes the data in reverse phase,which effectively avoids continuous long "0"and continuous long "1". The design takes full advantages of FPGA parallel data processing features, and improves the reliability of optical fiber communication, which greatly enhances the performance of smart substation system.

关 键 词：智能变电站 光纤通信 编解码 FPGA 

分 类 号：TM77[电气工程—电力系统及自动化]