Camera Link数字视频光纤传输系统的FPGA实现  

Realization of Camera Link Digital Video Fiber Transmission System Based on FPGA

作　　者：李志强[1,2] 张建华[1,2] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所 [2]中国科学院航空光学成像与测量重点实验室,长春130033

出　　处：《长春理工大学学报（自然科学版）》2012年第4期109-112,129,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

摘　　要：为解决实时转动的光电平台中高速Camera Link数字视频信号的传输问题,在光电平台设计中采用了光纤滑环替代传统的导电滑环作为传输介质,为此提出了一种基于FPGA的Camera Link接口转光纤信号传输的设计方案。利用FP-GA强大的并行处理能力,采用乒乓缓存技术将Camera Link视频信号编解码并传输,解决了Camera Link数字视频信号数据量大导电滑环难以实时传输的问题。试验结果表明,在传输速率120Mb/s的条件下系统可长时间稳定工作,最高传输速率可达到1.25Gb/s。In order to transmit the high-speed Camera Link digital video signal in the continuous rotate Opto-electronic platform,we used a fiber-optical rotating connecter instead of the traditional electrical rotating connecter as the transmission medium,and designed a Camera Link to fiber transmission system based on FPGA.By its strong ability of parallel processing,it can decode and encode Camera Link digital video by ping-pang operation,then transmit them.The data of camera link digital video signal is large and the slip ring is difficult to real-time transmisson.But now,these problems are all resolved by this system in some degree.The result of the examination has proved that the system can work steadily in a long time on the transmit speed of 120Mb/s,and its top transmit speed can reach 1.25Gb/s.

关 键 词：CAMERA Link 光纤传输 FPGA 乒乓缓存 FIFO 

分 类 号：TP394.1[自动化与计算机技术—计算机应用技术] TH691.9[自动化与计算机技术—计算机科学与技术]