高精度小抖动脉冲延时发生器的研制  

Development of a High-precision and Low-jitter Pulse Delay Generator

作　　者：迟晨[1] 伍伟 方盛江 刘德林[1] CHI Chen;WU Wei;FANG Shengjiang;LIU Delin(The 55th Research Institute of China Electronic Technology Group Corporation,Nanjing 210016,CHN)

机构地区：[1]中国电子科技集团公司第五十五研究所,南京210016

出　　处：《光电子技术》2020年第2期108-113,共6页Optoelectronic Technology

摘　　要：针对激光雷达中脉冲同步存在的抖动大和精度低问题开展分析,提出了数字计数和模拟延时相结合的总体方案,采用抖动补偿技术实现抖动消除,模拟电路实现延时的高精度。通过对研制的脉冲延时发生器实测,抖动和精度分别小于40 ps和3 ps,测试结果表明该脉冲延时发生器能够满足激光雷达高性能同步技术的要求。The large-jitter and low-precision of pulse synchronization in LIDAR were analyzed.An overall scheme combining digital counting and analog delay was proposed,in which the jitter compensation technology was used to eliminate the jitter,and the high precision of pulse delay was achieved by analog circuit. The jitter and precision of pulse delay were less than 40 ps and 3 ps respectively according to the test result. The test results also show that the pulse delay generator could meet the requirements of high-performance synchronization in LIDAR.

关 键 词：脉冲延时 抖动 同步技术 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TN78[自动化与计算机技术—计算机科学与技术]