瞬变光辐射采集系统设计  

Design of Data Acquisition System for Transient Light Signal

作　　者：王良[1,2] 汶德胜[1] 占建明[1,2] 

机构地区：[1]中国科学院西安光学精密机械研究所,陕西西安710119 [2]中国科学院研究生院,北京100039

出　　处：《现代电子技术》2011年第19期69-71,共3页Modern Electronics Technique

摘　　要：介绍一种针对瞬变光辐射信号探测的数据采集系统。该方案以FPGA为控制处理核心,实现了高性能的数据采集。针对特定目标信号,采用变频采样技术,在电路上以变频存储的方式实现,降低了设计难度。采用Altera公司的EPF10K20为设计载体,使用VHDL语言对该采集系统的控制逻辑和时序进行了硬件语言描述。该设计方案占用的FPGA资源少,具有实时性好、可靠性高、集成度高和易于移植等特点。A data acquisition system for transient light signal is presented,which utilizes FPGA as the center of controlling and processing and implements high performance data acquisition.Adaptive-sampling technology is adopted to capture the signal,which is implemented by adaptive-storing in the circuit.Altera＇s EPF10K20 is selected as core part to fulfill the hardware design.The control logic and timing sequence are described by the hardware description language VHDL.The design scheme has the features of good real-time performance,high reliability,high integration,easy migration and so on.

关 键 词：瞬变光 变频采样 数据采集 FPGA 先进先出存储器 

分 类 号：TN79-33[电子电信—电路与系统] TP274[自动化与计算机技术—检测技术与自动化装置]