• Infrared and Laser Engineering
  • Vol. 49, Issue 10, 20200021 (2020)
Huarong Deng1, Mingliang Long1, Haifeng Zhang1、2, Zhibo Wu1、2, Kai Tang1, and Zhongping Zhang1、2、*
Author Affiliations
  • 1Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • 2Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210008, China
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    DOI: 10.3788/IRLA20200021 Cite this Article
    Huarong Deng, Mingliang Long, Haifeng Zhang, Zhibo Wu, Kai Tang, Zhongping Zhang. Experiment of satellite laser ranging in daytime based on 1 064 nm wavelength[J]. Infrared and Laser Engineering, 2020, 49(10): 20200021 Copy Citation Text show less

    Abstract

    At 1 064 nm, the atmospheric transmittance is high and the sky background radiation is small. The use of this laser to carry out satellite ranging is helpful to improve the observation capability of ranging system, and satellite laser ranging of the 1 064 nm has become one of the important development trends of international laser ranging technology. Based on the filter with a bandwidth of 2.2 nm, the noise of the 1 064 nm ranging system was calculated and tested in the daytime, which verified the suppression effect of this filter on the background noise during the day. With the help of the infrared camera at night, the coincidence between transmitting light path and the mechanical axis was realized based on the circular center method, which ensured the laser pointing accuracy is better than 5″ in all-sky area and solved the problem that the laser pointing at 1 064 nm needs real-time monitoring in the daytime. Based on the 1 064 nm laser with a repetition frequency of 1 kHz and a power of 5 W, Shanghai Astronomical Observatory established the 1 064 nm daytime satellite laser ranging experimental system. At the farthest, the effective echo data of geosynchronous orbit satellite was obtained. The experimental study will lay a technical foundation for the application and development of 1 064 nm laser ranging in long-distance satellite and diffuse reflection laser ranging in space debris.
    Huarong Deng, Mingliang Long, Haifeng Zhang, Zhibo Wu, Kai Tang, Zhongping Zhang. Experiment of satellite laser ranging in daytime based on 1 064 nm wavelength[J]. Infrared and Laser Engineering, 2020, 49(10): 20200021
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