高速数据采集系统中的差拍和随机采样技术  

Beat and Random Sampling Techniques in High Speed Data Acquisition Systems

作　　者：王振荣 王伟勋 

机构地区：[1]陕西电子产品质量监督检验所,陕西西安710004 [2]金川公司培训中心,甘肃金昌737100

出　　处：《现代电子技术》2007年第6期166-169,共4页Modern Electronics Technique

摘　　要：提出一种为解决高频、宽带周期信号的数据采集而发展起来的差拍和随机等效采样技术。介绍了用产生分频脉冲和步进脉冲的方法实现的差拍采样,给出了随机采样系统的实现原理、关键技术以及正负延迟触发的控制技术。This paper presents beat and random equivalent sampling techniques to solve the data acquisition of high frequency wideband period signal. The beat equivalent sampling techniques are realized by producing frequency - dividing pulse and stepping pulse. The theory and methods of a data acquisition system based on random equivalent sampling are stated, which include trigger - delay controlled and random trigger time measured.

关 键 词：数据采集 差拍 随机等效 分频脉冲 

分 类 号：TP274.3[自动化与计算机技术—检测技术与自动化装置]