| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance |
WANG Xin-Wei, ZHOU Yan, FAN Song-Tao, HE Jun, LIU Yu-Liang |
| Optoelectronic System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 |
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| Cite this article: |
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WANG Xin-Wei, ZHOU Yan, FAN Song-Tao et al 2010 Chin. Phys. Lett. 27 094203 |
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Abstract 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 μJ.
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| Keywords:
42.30.Sy
42.30.Va
42.79.Pw
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Received: 26 January 2010
Published: 25 August 2010
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