一种基于FPGA的多通道数字采集同步技术的实现  

An Implementation of Multi-channel Digital Acquisition Synchronization Based on FPGA

作　　者：魏静[1] 马少春 WEI Jing;MA Shaochun(East China Research Institute of Electronic Engineering,Heifei 230088,China)

机构地区：[1]中国电子科技集团公司第三十八所,安徽合肥230088

出　　处：《电声技术》2023年第4期115-117,共3页Audio Engineering

摘　　要：随着系统带宽和采样率的不断提高,单路信号的分时采集已经不能满足工程实际需求,多通道数字采集技术的发展为人们提供了思路。基于多通道数字采集同步技术和JESD204B协议,选用GM4680-1000+GMD7043设计了一种8通道数字采集板,实现了高速、高精度的多通道数据采集同步。通过仿真实例验证,设计的数字采集板通道间的幅度、相位波动小,工作稳定、可靠性高,在某系统中的数字接收分系统得到了实际应用。With the continuous improvement of system bandwidth and sampling rate,the time-sharing acquisition of single-channel signals can no longer meet the practical needs of engineering,and the development of multi-channel digital acquisition technology provides people with ideas.Based on the multi-channel digital acquisition synchronization technology and JESD204B protocol,an 8-channel digital acquisition board is designed by using GM4680-1000+GMD7043,which realizes high-speed and high-precision multi-channel data acquisition synchronization.The simulation results show that the designed digital acquisition board has small amplitude and phase fluctuation between channels,stable operation and high reliability,and has been applied in the digital receiving subsystem of a system.

关 键 词：多通道数字采集 同步采集 同步传输 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]