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.
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.
WANG Xin-Wei;ZHOU Yan;FAN Song-Tao;HE Jun;LIU Yu-Liang. Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance[J]. 中国物理快报, 2010, 27(9): 94203-094203.
WANG Xin-Wei, ZHOU Yan, FAN Song-Tao, HE Jun, LIU Yu-Liang. Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance. Chin. Phys. Lett., 2010, 27(9): 94203-094203.
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2010, Vol. 27 
