光学精密工程2018，Vol.26Issue(4)：971-979,9.DOI:10.3788/OPE.20182604.0971
遥感相机快视高速可靠传输系统的设计与实现
Design and implementation of high speed and reliable transmission platform in fast view system
摘要
Abstract
Aiming at the problem of the high data rate of remote sensing satellite cameras and the in-sufficient transmission bandwidth of fast view system,a new high speed reliable transmission system based on 10 Gb/s Ethernet was proposed and performed.The front end of the transmission system a-dopted FPGA as the main control unit that constructed the reliable transmission protocol stack.The transmission system achieved the reliable transmission for high speed data stream by ack-resend algo-rithm and flow control in application layer.The DDR3 multi-port front end was used to cache the frames that had been sent but not acknowledged at the transmission protocol stack due to that retrans-mission algorithm needed to consume more cache resources.The high speed data stream of the front end was smoothed at the same time.Experiment results indicate that the transmission system can transform reliable high speed data stream up to 1000 MB/s when the CPU load is small;When CPU load is heavy,the speed reduces to 600 MB/s.This system works at high speed with reliable perform-ance,and costs low,and it is easy to expand to multi-channel transmission system.It has been suc-cessfully applied in a fast view system.关键词
快视/高速数据传输/可靠数据传输/FPGA/万兆以太网Key words
fast view/high speed data transmission/reliable data transmission/FPGA/10 Gb/s Eth-ernet分类
信息技术与安全科学引用本文复制引用
夏巧桥,胡正文,张青林..遥感相机快视高速可靠传输系统的设计与实现[J].光学精密工程,2018,26(4):971-979,9.基金项目
国家自然科学基金资助项目(No.61501334) （No.61501334）
华中师范大学中央高校基本科研基金资助项目(No.CC-NU16A05028) （No.CC-NU16A05028）
