摘要
为了满足长线高速信号传输,零误码率的性能需求,利用LVDS接口技术和光电转换方式设计了一种长距离数据传输系统。硬件设计采用MLH系列串行电缆均衡器和驱动器配合使用,增强了同轴电缆差分信号的驱动能力,并进行自适应性补偿;通过光电信号相结合的传输方式,延伸了长线传输距离;逻辑设计通过优化有效和无效数的判断标志,解决了高速数据传输失锁现象。在各种实验环境下,经过多次大容量数据接收测试,表明LVDS信号以300 Mbit/s的速度在百米双绞线和2 km光纤传输链路上可以实现无误码传输,并且已经投入工程应用。
In order to meet the performance requirements of long line high speed signal transmission with zero BER,a long distance data transmission system is designed using LVDS interface technology and optical conversion method.Hardware design uses MLH series serial cable equalizer and driver to work together to enhance the coaxial cable differential signal driving capability with adaptive compensation.Extension of the long-line transmission distance by means of combined photoelectric signal transmission.The logic design solves the high-speed data transmission out-of-lock phenomenon by optimizing the judgment flags for valid and invalid numbers.After several high-capacity data reception tests in various experimental environments,it has been demonstrated that LVDS signals can be transmitted without error codes at 300 Mbit/s over 100 m twisted pair and 2 km fiber optic transmission links,and has been put into engineering applications.
作者
赵晓阳
张会新
薛伟钊
庆雨豪
彭晴晴
Zhao Xiaoyang;Zhang Huixin;Xue Weizhao;Qing Yuhao;Peng Qingqing(Key Laboratory of Instrument Science and Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China;North Automatic Control Technology Institute,Taiyuan 030006,China)
出处
《电子测量技术》
北大核心
2021年第23期126-130,共5页
Electronic Measurement Technology
关键词
远距离
高速
零误码率
LVDS
光电转换
失锁
long-range
high-speed
zero BER
LVDS
optical conversion
loss-of-lock
