基于ZYNQ的光纤-以太网传输系统设计  

Design of optical fiber-ethernet transmission system based on ZYNQ

作　　者：姜浩 李和平 马翠梅[1,3] JIANG Hao;LI Heping;MA Cuimei(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院大学,北京100049 [3]中国科学院电子学研究所,北京100190

出　　处：《光通信技术》2020年第7期19-23,共5页Optical Communication Technology

基　　金：国家重点研发计划(2017YFB0503001)资助。

摘　　要：为满足合成孔径雷达实时成像、数据回放等高速可靠数据传输需求,解决传统数据传输系统由于接口要求高、体积与功耗大以及网络配置不灵活等原因不适合用于外场试验的问题,基于ZYNQ芯片设计一种光纤接口到以太网接口的数据传输系统。主要介绍数据传输流程的实现方法,并提出一种三级乒乓和指令并行的优化策略保证数据正确,提高传输速度;通过移植嵌入式Linux系统实现灵活修改网络配置。与传统方案相比,该系统在体积、功耗和灵活性上具有明显优势。经实验验证,数据传输速度可达770 Mb/s。A data transmission system with optical fiber interface to ethernet interface is designed in order to meet the needs of high-speed and reliable data transmission such as synthetic aperture radar real-time imaging and data playback,and to solve the problems that traditional data transmission systems are not suitable for field tests due to high interface requirements,large volume and power consumption,and inflexible network configuration.This paper mainly introduces the realization method of data transmission,and puts forward an optimization strategy of three-stage ping-pong and instruction parallel to ensure the correct data and improve the transmission speed.The network configuration can be flexibly modified by means of embedded Linux system.Compared with traditional systems,the system has obvious advantages in volume,power consumption and flexibility.Experimental results show that the data transmission speed can reach 770 Mb/s.

关 键 词：高速数据传输 合成孔径雷达 Aurora IP用户接口 千兆以太网 现场可编程门阵列 嵌入式Linux 内存映射 乒乓操作 

分 类 号：TN959[电子电信—信号与信息处理] TN914[电子电信—信息与通信工程]