Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance

被引：13

作者：

Wang Xin-Wei ^{[1
]}

Zhou Yan ^{[1
]}

Fan Song-Tao ^{[1
]}

He Jun ^{[1
]}

Liu Yu-Liang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Optoelect Syst Lab, Beijing 100083, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2010年 / 27卷 / 09期

基金：

国家高技术研究发展计划(863计划);

关键词：

SYSTEM;

D O I：

10.1088/0256-307X/27/9/094203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For night remote surveillance, we present a method, the range-gated laser stroboscopic imaging(RGLSI), which uses a new kind of time delay integration mode to integrate target signals so that night remote surveillance can be realized by a low-energy illuminated laser. The time delay integration in this method has no influence on the video frame rate. Compared with the traditional range-gated laser imaging, RGLSI can reduce scintillation and target speckle effects and significantly improve the image signal-to-noise ratio analyzed. Even under low light level and low visibility conditions, the RGLSI system can effectively work. In a preliminary experiment, we have detected and recognized a railway bridge one kilometer away under a visibility of six kilometers, when the effective illuminated energy is 29.5 mu J.

引用

页数：4

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