高速数据采集卡的设计  

Design of High-Speed Data Acquisition Card

作　　者：孙冀伟[1] 祁载康[1] 沈吉[1] 张伟[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《数据采集与处理》2003年第3期323-326,共4页Journal of Data Acquisition and Processing

摘　　要：为了满足对雷达信号高速采集的要求 ,设计了一个基于 1 6位 ISA总线的 3 0 MSPS的双通道数据采集卡。该采集卡的最大特点是可以由程序设定每次同步触发后的采样延迟时间和采样的点数。本文对 A/ D转换及其接口电路 ,D/ A转换电路存储器接口电路及延迟采样控制电路进行了详细论述。A bi-channel 30MSPS data acquisition card based on the 16-bit ISA bus is designed to meet the requirements of high-speed radar signal processing. The main features of the card show that it can set delay-time and the length of acquisition after triggering. The A/D interface circuit, D/A circuit, memory interface circuit, and delay sampling control circuit are described.

关 键 词：高速数据采集卡 设计 雷达信号 数字信号处理 回波信号 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TN957.51[自动化与计算机技术—控制科学与工程]