GNSS World of China

Volume 48 Issue 4
Sep.  2023
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XU Wenpu, CHEN Qidong, HUANG Xiao, LIU Rui, LIU Yang. Research on GNSS non-stationary interference technology for countering interference antennas[J]. GNSS World of China, 2023, 48(4): 108-114. doi: 10.12265/j.gnss.2023152
Citation: XU Wenpu, CHEN Qidong, HUANG Xiao, LIU Rui, LIU Yang. Research on GNSS non-stationary interference technology for countering interference antennas[J]. GNSS World of China, 2023, 48(4): 108-114. doi: 10.12265/j.gnss.2023152
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Research on GNSS non-stationary interference technology for countering interference antennas

doi: 10.12265/j.gnss.2023152

  • China Research Institute of Radiowave Propagation, Qingdao 266107, China

  • Received Date: 2023-07-21
    Available Online: 2023-08-22
    Abstract
  • A signal system design based on non-stationary interference signals is proposed for GNSS anti-interference antenna arrays to improve the interference effect on GNSS signals. Simulate non-stationary interference signals from different systems by constructing interference scenarios targeting GNSS anti-interference antenna arrays. For anti-interference antennas using space frequency anti-interference algorithms, the interference effect of GNSS signals is improved by more than 10 dB compared to traditional broadband spread spectrum interference by using non-stationary interference signals. The designed interference system, with its non-stationary characteristics, breaks the premise of designing antenna array anti-interference algorithms (the interference signal is generally stable), and has a significant impact on the performance of such anti-interference algorithms.

     

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