• Infrared and Laser Engineering
  • Vol. 46, Issue 9, 917005 (2017)
Deng Huarong*, Wu Zhibo, Li Pu, Tang Kai, and Zhang Haifeng
Author Affiliations
  • [in Chinese]
  • show less
    DOI: 10.3788/irla201746.0917005 Cite this Article
    Deng Huarong, Wu Zhibo, Li Pu, Tang Kai, Zhang Haifeng. Improvement research on SLR data deviation by using polarization technology for energy regulation[J]. Infrared and Laser Engineering, 2017, 46(9): 917005 Copy Citation Text show less

    Abstract

    Improving SLR observation data deviation has an important role in promoting application of millimeter precision satellite laser ranging technology in global geodetic observation system. The error of system time-delay calibration is the main reason of producing SLR observation data deviation. In the affecting factors, the system difference between target measurement and satellite laser ranging and time walk effects of detector for echo intensity in single photon detection are the mainly ones. On the platform of SLR system in Shanghai Astronomical Observatory, the differences of system delay and laser echo intensity in two measurement modes were analyzed and corrected. Laser polarization property was made use of, polarization technology of half wave plate-polarizer combination for energy regulation was applied, and optical path "zero difference" switch and echo intensity of real-time control in two measurement modes were implemented. The technology effectively reduces the light path difference and time walk effects of detector, and data improvement was about 10-20 mm which has met SLR international quality standard. The technology can also be used for backscatter avoidance in high repetition rate laser ranging, improve the echo numbers and have the good value for popularization and application.
    Deng Huarong, Wu Zhibo, Li Pu, Tang Kai, Zhang Haifeng. Improvement research on SLR data deviation by using polarization technology for energy regulation[J]. Infrared and Laser Engineering, 2017, 46(9): 917005
    Download Citation