Optical Communication Technology, Volume. 47, Issue 5, 34(2023)

Doppler frequency shifter compensation technology in inter-satellite laser time and frequency transfer system

LUO Zhangsi and LIANG Xiaodong
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  • [in Chinese]
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    In order to reduce the Doppler shift in the process of time-frequency transmission and improve the reliability of inter-satellite communication, a Doppler shift compensation technique is proposed. Firstly, the Doppler shift is analyzed theoretically and simulated, and the Doppler shift is obtained when the two satellites transmit the laser optical frequency before the communication is interrupted for 24 h. Then, a Doppler shift compensation system is designed for intersatellite laser Doppler shift compensation. The simulation results show that the system can complete Doppler shift compensation in about 15 control cycles, making the compensated Doppler shift less than 8 kHz, which is 6 orders of magnitude better than the uncompensated condition.

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    LUO Zhangsi, LIANG Xiaodong. Doppler frequency shifter compensation technology in inter-satellite laser time and frequency transfer system[J]. Optical Communication Technology, 2023, 47(5): 34

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    Paper Information

    Received: Jul. 19, 2023

    Accepted: --

    Published Online: Feb. 2, 2024

    The Author Email:

    DOI:10.13921/j.cnki.issn1002-5561.2023.05.007

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