基于FPGA的万兆以太网解帧器的设计与实现

发布时间：2018-03-13 04:11

本文选题：CCSDS　切入点：天地一体化　出处：《河北大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着空间技术和互联网技术的越来越深入和成熟,探索空间脚步越来越快,空间任务呈现的更加的繁重和更加的多样化,地面和空间的网络互操作的需求也越来越迫切。因此建立空天地一体化信息网络系统,无缝连接地面网络和空间网络已经成为一种必然趋势。近些年,只有克服了天地一体化网络之间互联、互通和互操作的困难,才能更好的对临近地面空间的和深空进行探索。为了能够提供更加便捷、更加高效的的空地双向数据业务服务。AOS协议由空间数据系统咨询委员会(CCSDS)提出,能够完成大容量、高速率的数据传输;适合传输视频、图像和音频等这也更加符合现代社会要求。目前,CCSDS AOS标准已成为国际主流标准。国外航天空间组织大都采用CCSDS标准,航天技术发展已经成熟。我国由于起步比较晚,大部分航天器使用的遥测系统还比较传统,由于已经很难满足复杂环境下的数据传输。所以必须研究和采用CCSDS AOS协议。基于这种背景下,本文通过对CCSDS标准的研究,分析了万兆以太网协议,CCSDS AOS协议,CCSDS主网的业务和业务等级等,最终设计出了万兆以太网协议转换单元,实现了以太帧和CCSDS AOS空间链路帧的相互转换。本文描述了项目的总体设计方案,对万兆以太网协议转换单元做了详细的介绍,实际搭建了测试平台对解帧器进行了功能和性能上的测试,验证了其正确性,最终达到预期目标。
[Abstract]:Along with the development of space technology and Internet technology is more and more deep and mature space exploration, the increasingly rapid pace, showing more heavy task space and more diversified, ground and space network interoperability needs more and more urgent. Therefore the establishment of air space ground integrated information network system, the seamless connection of ground network and space network has become a kind of inevitable trend. In recent years, only to overcome the interconnection between the integrative network, interoperability and interoperability problems, in order to better explore of near ground space and deep space. In order to provide more convenient and more efficient space two-way data services.AOS protocol by the Consultative Committee for space data system (CCSDS) is proposed able to complete, large capacity, high speed data transmission; suitable for transmission of video, image and audio etc. it also accords with the demands of modern society. At present, C CSDS AOS standard has become the mainstream international standard. The foreign space organization using the CCSDS standard, the development of space technology has been mature in China. Due to a late start, most spacecraft telemetry system is still relatively traditional, because has been difficult to meet the complex environment of data transmission. So we must study and use CCSDS based on AOS protocol. Under this background, this paper through the research of CCSDS, analyzes the Gigabit Ethernet CCSDS protocol, AOS protocol, CCSDS network business and service level, the final design of a Gigabit Ethernet protocol conversion unit, realizes the conversion between Ethernet frame and CCSDS AOS space link frame. This paper describes the overall design of the project the project, made a detailed introduction of 10Gigabit Ethernet protocol conversion unit, the actual test platform has been built on the functionality and performance testing of deframe module, verify the Correctness, and ultimately achieve the desired goal.

【学位授予单位】：河北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：V443.1;TN791;TP393.11

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