一种改进的激光距离选通成像系统  

An Improved Laser Range Gated Imaging System

作　　者：徐效文[1] 郭劲[1] 于前洋[1] 付有余[1] 周建民[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130022

出　　处：《激光与红外》2004年第1期3-5,共3页Laser & Infrared

摘　　要：距离选通技术是克服激光后向散射,提高激光距离选通成像系统信噪比的有效方法。阐述了激光距离选通成像原理,详细分析了距离选通关键技术,指出了传统的距离选通同步控制方案的缺点,提出了一种改进的激光距离选通成像系统,讨论了激光距离选通成像系统今后需要重点研究的课题和发展趋势。Range gating is a kind of effective method which can eliminate backscattered light and increase the SNR of the laser range gated (LRG)imaging system.The theory of range gating is described,based on which,the key techniques for range gating are analyzed briefly.The shortcomings of the traditional range-gated synchronization control system is pointed out.An improved LRG imaging system is proposed.The key research tasks which LRG imaging system need to focus on are discussed.The development trends of range-gated active imaging are predicted.

关 键 词：距离选通 信噪比 同步控制 激光成像 脉冲激光器 选通摄像机 

分 类 号：TN24[电子电信—物理电子学]