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vol 63 / August, 2020
Article

DOI 10.17586/0021-3454-2018-61-12-1072-1076

UDC 004.056.53

OPTIMIZATION OF THE ACTIVE-IMPULSE METHOD OF OBSERVATIONS USING THE CCD RECEIVER AT LOW ILLUMINATION

A. A. Golitsyn
Novosibirsk Division of Rzhanov Institute of Semiconductor Physics of the Siberian Branch of the RAS “Technological Design Institute of Applied Microelectronics”, Department of Electronic Systems; Senior Electronics Engineer


N. A. Seyfi
Novosibirsk Division of Rzhanov Institute of Semiconductor Physics of the Siberian Branch of the RAS “Technological Design Institute of Applied Microelectronics”, Department of Electronic Systems; Engineer


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Abstract. In order to increase the information content of an image at low light conditions with an excessive number of strobing pulses, when the total exposure time is not enough to eliminate the deficiency, it is proposed to obtain two separate frames - in passive (normal) and AI-mode of operation, and then sum-marize them pixel-by-pixel. A control mode of the CCD photodetector with line transfer is developed, which allows to increase the exposure time at low light conditions in the active-pulse observation system without the use of an optical-electronic converter.
Keywords: gated viewing, range-gated method, low illumination, CCD image sensor, laser emitter

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