Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance

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.

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Made available in DSpace on 2010-10-11T03:10:20Z (GMT). No. of bitstreams: 1 Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance.pdf: 578930 bytes, checksum: 5813a790db333878843110064aa42cdc (MD5) Previous issue date: 2010

Supported by the National High Technology Research and Development Program of China under No 2007AA11Z238.

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Supported by the National High Technology Research and Development Program of China under No 2007AA11Z238.