Infrared and Laser Engineering, Volume. 54, Issue 6, 20250029(2025)

Compound-axis control model and analysis of link performance impacts in satellite laser communication systems

Qinglong YANG1, Chenbo ZHANG1, Yinqiao LI1, and Yixiao ZHU2
Author Affiliations
  • 1Institute of Telecommunication and Navigation Satellites, China Academy of Space Technology, Beijing 100094, China
  • 2Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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    Figures & Tables(11)
    The block diagram of the compound axis tracking system
    Models of various error sources
    Open-loop Bode digram of the coarse tracking subsystem, fine tracking subsystem and compound axis tracking system
    Closed-loop magnitude-frequency response of the coarse tracking subsystem (a) and compound axis tracking system (b)
    Tracking error of the compound axis tracking system with and without considering disturbances
    Satellite-body vibration by SILEX and OLYMPUS models
    Tracking error before and after linear optimization (satellite-body vibration is SILEX model added with vibration at different frequency points)
    Performance analysis when stationary tracking
    Performance analysis during the satellite attitude adjustment
    Impact analysis of step disturbances
    • Table 1. Influence of various error sources on tracking accuracy of the compound axis tracking system

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      Table 1. Influence of various error sources on tracking accuracy of the compound axis tracking system

      Error sourceTracking error/μrad
      Without disturbance0.042
      Detector error0.47
      Encoder, gear errors and relative effects0.46
      Satellite-body vibration and relative effects1.18 0.77SILEX/OLYMPUS
      All disturbances1.29 0.98SILEX/OLYMPUS
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    Qinglong YANG, Chenbo ZHANG, Yinqiao LI, Yixiao ZHU. Compound-axis control model and analysis of link performance impacts in satellite laser communication systems[J]. Infrared and Laser Engineering, 2025, 54(6): 20250029

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    Paper Information

    Category: 光通信与光传感

    Received: Jan. 12, 2025

    Accepted: --

    Published Online: Jul. 1, 2025

    The Author Email:

    DOI:10.3788/IRLA20250029

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