Optical Communication Technology, Volume. 49, Issue 4, 97(2025)

Time delay parameter measurement method based on time-division multiplexed fiber optic detector array

DONG Xiaowei1, TIAN Zhihua1, LI Jiaqi1, LIU Fei2, MA Junxiu1, LI Yiqiang1, and WANG Zhi1
Author Affiliations
  • 1Oil Production Technology Research Institute, PetroChina Xinjiang Oilfield Company, Karamay Xinjiang 834000, China
  • 2School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China
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    To improve the measurement accuracy and efficiency of time delay parameters in time-division multiplexed fiber optic detector arrays, a time delay parameter measurement method based on a time-division multiplexed fiber optic detector array is proposed. This method constructs a data matrix to extract variance vectors, performs correlation operations using a pulse template function, identifies the positions of interference pulses, and thereby calculates the time delay parameters. Experiments were conducted on an 8-channel time-division multiplexed array to verify the method's reliability under different signal-to-noise ratio(SNR)conditions. The results show that when the SNR is above 12 dB, the measurement accuracy reaches 100%. When the SNR drops to 7 dB, the success rate remains over 98%. Even at an extremely low SNR of -3 dB, the method maintains a correct rate above 65%.

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    DONG Xiaowei, TIAN Zhihua, LI Jiaqi, LIU Fei, MA Junxiu, LI Yiqiang, WANG Zhi. Time delay parameter measurement method based on time-division multiplexed fiber optic detector array[J]. Optical Communication Technology, 2025, 49(4): 97

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    Paper Information

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    Received: Oct. 8, 2024

    Accepted: Sep. 15, 2025

    Published Online: Sep. 15, 2025

    The Author Email:

    DOI:10.13921/j.cnki.issn1002-5561.2025.04.018

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