• Chinese Journal of Lasers
  • Vol. 41, Issue s1, 108003 (2014)
Zhang Haifeng*, Zhang Zhongping, Qin Si, Li Pu, Wu Zhibo, and Yu Yong
Author Affiliations
  • [in Chinese]
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    DOI: 10.3788/cjl201441.s108003 Cite this Article Set citation alerts
    Zhang Haifeng, Zhang Zhongping, Qin Si, Li Pu, Wu Zhibo, Yu Yong. Experimental Study on Laser Active Illumination to Space Targets within the Shadow of Earth[J]. Chinese Journal of Lasers, 2014, 41(s1): 108003 Copy Citation Text show less

    Abstract

    Low earth orbit space targets is more impressionable to the shadow of earth, which makes the ground optical observation system unable to realize the optical observation and posts the influences on the optical measurement data. As the active detection technology, laser active illumination is to use laser track and observation system on ground and transmit the laser beam to space targets within the shadow of earth. The receiving telescope and charge coupled devices (CCD) camera on ground receive and detect the laser echoes from targets and obtain the images if the requirements of CCD detecting threshold is meet. The laser signal with 532 nm wavelength is adopted as the light sources and the observations of laser active illumination to artificial satellites with the retro-reflectors within the shadow of earth are successfully implemented to validate the feasibility of measurement technology. According to the parameters of laser track and observation system on ground, the theoretical analysis of the signal noise ratio of CCD and the magnitude of illuminated satellites are also performed. Based on the image processing method of gray correlation, the measured magnitude of laser illumination to satellites is obtained and compared to the results of theoretical calculation, which verifies the rationality of theoretical and experimental methods.
    Zhang Haifeng, Zhang Zhongping, Qin Si, Li Pu, Wu Zhibo, Yu Yong. Experimental Study on Laser Active Illumination to Space Targets within the Shadow of Earth[J]. Chinese Journal of Lasers, 2014, 41(s1): 108003
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