一种基于GTP的光纤高清视频传输系统设计

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。

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

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.