激光雷达实时数据传输存储系统设计与实现  

Design and implementation of transmission and storage system for lidar

作　　者：刘汝卿 吴宇佳 李锋 蒋衍 朱精果 Liu Ruqing;Wu Yujia;Li Feng;Jiang Yan;Zhu Jingguo(Institude of Microelectronics of the Chinese Academy of Sciences,Beijing 100094,China;School of Optoelectronic Information,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]中国科学院微电子研究所,北京100094 [2]北京邮电大学光电信息学院,北京100876

出　　处：《电子测量技术》2020年第20期16-20,共5页Electronic Measurement Technology

摘　　要：针对激光雷达对于大数据量高速传输存储的需求,利用FPGA在数字信号处理方面的优势,提出一种以多核DSP为核心的数据传输存储系统。激光雷达采用FPGA作为核心控制器,通过高速并行通道UPP传输将激光雷达采集回波信息同步传输至DSP并实现实时存储。测试结果表明,UPP通道具备较高的数据传输率和可靠性,可以满足激光雷达高速实时数据传输的需求。同时通过对三种常用的数据存储介质数据率对比测试,表明采用SATA存储可在GByte数据量下实现43MB/s的数据率,保证了激光雷达大数据量下正常存储,该系统具有一定的实际应用价值。In response to the requirement of lidar for high-speed transmission of large amounts of data,with the advantages of FPGA in digital signal processing,a multi-core DSP and FPGA transmission and storage system is introduced for lidar data.Using FPGA as the core controller,the echo information collected by lidar is transmitted to DSP through the high-speed parallel channel(UPP)and stored in real time.The measurement results shown that UPP channel has high reliability,can meet the needs of lidar high-speed real-time data transmission.And through the comparison test of three commonly used data storage media,it shown that the data rate of 43MB/s can be achieved under GByte data volume by using SATA storage,which ensured the normal storage of large lidar data.The results shown that this system has certain application value.

关 键 词：激光雷达 FPGA DSP 数据传输 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]