›› 2016, Vol. 29 ›› Issue (7): 139-.

• 论文 • 上一篇    下一篇

一种基于GTP的光纤高清视频传输系统设计

闵应涛,唐清善,李亚捷,钟海丽,曾鹏飞,罗振,陈凯,黎欢   

  1. (长沙理工大学 物理与电子科学学院,湖南 长沙 410004)
  • 出版日期:2016-07-15 发布日期:2016-07-15
  • 作者简介:闵应涛(1989-),男,硕士研究生。研究方向:数字视频处理。唐清善(1977-),男,博士。研究方向:数字信号处理等。李亚捷(1980-),女,副教授。研究方向:基于光纤的全光处理器件。钟海丽(1967-),女,副教授。研究方向:光电子技术及其应用等。

Design of Fiber Optic High-definition Video Transmission System Based on GTP

MIN Yingtao, TANG Qingshan, LI Yajie, ZHONG Haili, ZENG Pengfei, LUO Zhen, CHEN Kai, LI Huan   

  1. (School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410004, China)
  • Online:2016-07-15 Published:2016-07-15

摘要:

为满足视频传输系统对远距离、高清画质、无失真、抗干扰性和稳定性的需求,提出了一种基于GTP的高速串行传输以取代以往的并行传输模式,实现高清视频的无压缩远距离传输。FPGA采集数字视频数据后识别视频格式并经过SDRAM缓存,在GTP中转换为高速串行数据后通过单模光纤传输。GTP在25 Gbit·s-1的速率下传输,接收端对视频数据进行解码、缓存、显示。经过仿真、调试、验证,系统能稳定传输720p、1 080p等8种主流分辨率的视频,且可实时切换。

关键词: GTP, 高清视频, 光纤传输, 实时切换分辨率

Abstract:

To meet the needs of the long-distance, high-definition picture quality, anti-interference and stability in video transmission system, a high-speed serial transmission based on GTP is proposed to replace the conventional parallel transmission mode, implements long-distance transmission of uncompressed HD video. FPGA identifies the video formats and cached data in SDRAM after acquiring digital video data, which are converted to high-speed serial data in GTP and then transmitted via single-mode fibers at 25 Gbit·s-1. The receiver decodes, caches and displays the video data. Simulation, debugging and verification show that the system is capable of stable transmission of and real-time switching between 8 mainstream resolution videos such as 720p and1 080p.

Key words: GTP, HD Video, fiber transmission, real-time switching resolution

中图分类号: 

  • TN919.8