距离选通技术在光子计数系统中的应用  

The application of rage-gated technique in photon-counting system

作　　者：邹晓坤[1,2] 郭喜庆[2] 崔惠绒[2] 

机构地区：[1]中国科学院研究生院,北京100080 [2]中国科学院光电研究院,北京100085

出　　处：《微计算机信息》2010年第10期60-61,75,共3页Control & Automation

摘　　要：本文给出了距离选通光子计数系统的信噪比模型并讨论了激光回波与探测器选通门之间的同步问题。距离选通系统中存在各种器件延时,只有精确测量系统的器件延时,才能提高选通系统的同步精度。文章提出一种测量距离选通系统时间延迟的方法,并阐述其对系统信噪比的贡献。This article provides the signal-to-noise ratio module of the range-gating photon counting system and discusses the synchronization between the laser echo wave and the detector gate.In order to raise the system synchronization precision,we have to accurately pinpoint the the system time delay while the system is full of all kinds of delays.We introduce a way of measuring the time delay and discuss its improvement to the system SNR.

关 键 词：距离选通 光子计数 信噪比 后向散射 

分 类 号：TN249[电子电信—物理电子学]