现代电子技术2018，Vol.41Issue(6)：117-120,124,5.DOI:10.16652/j.issn.1004-373x.2018.06.028
基于FPGA的模/数混合采集系统优化设计
Optimization design of analog-digital hybrid acquisition system based on FPGA
摘要
Abstract
In allusion to the acquisition requirement of space environment analog quantity and image digital quantity on the missile environment,a analog-digital hybrid acquisition system based on FPGA is designed. In the system,the operational am-plifier instability of analog quantity acquisition is analyzed and optimized to increase operational amplifier compensation circuits and improve stability. In FPGA,analog-digital hybrid framing is adopted to improve data storage efficiency. Meanwhile,in allu-sion to the mismatching problem of data generation speed and transmission speed caused by speed variation of packed image sig-nal data,the dynamic balanced framing method is proposed to solve the speed matching problem. The actual flight test demon-strates that the acquisition system has reliable data output,and can meet various system performance indexes.关键词
数据采集/运放补偿/均匀采样/模/数混合编帧/FPGA/动态平衡编帧Key words
data acquisition/operational amplifier compensation/uniform sampling/analog-digital hybrid framing/FPGA/dynamic balanced framing分类
信息技术与安全科学引用本文复制引用
杨圣龙,任勇峰,李辉景..基于FPGA的模/数混合采集系统优化设计[J].现代电子技术,2018,41(6):117-120,124,5.基金项目
国家自然科学基金资助项目(51225504) Project Supported by National Natural Science Foundation of China(51225504) （51225504）
