GNSS World of China

Volume 49 Issue 4
Aug.  2024
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ZHAO Shen, HU Yong, LI Shiling, XIA Yi. Research on GNSS spoof detection method based on PCS combined with Ratio[J]. GNSS World of China, 2024, 49(4): 99-106. doi: 10.12265/j.gnss.2023234
Citation: ZHAO Shen, HU Yong, LI Shiling, XIA Yi. Research on GNSS spoof detection method based on PCS combined with Ratio[J]. GNSS World of China, 2024, 49(4): 99-106. doi: 10.12265/j.gnss.2023234

Research on GNSS spoof detection method based on PCS combined with Ratio

doi: 10.12265/j.gnss.2023234
  • Received Date: 2023-12-21
    Available Online: 2024-07-08
  • A spoofing detection algorithm based on power combind with signal quality montoring(PCS) combind with Ratio(PCSR) is proposed to improve the performance of spoofing detection, in response to the problem of high fluctuation in the detection performance of PCS during the traction stage. The fusion process of the PCSR algorithm uses a weighting factor to linearly weight the amplitudes of the processed PCS and Ratio, and adjusts the contribution of PCS and Ratio to PCSR by changing the weighting factor.The experiment used data scenario 4 (DS4) of texas spoofing test battery (TEXBAT) from the University of Texas at Austin as the dataset to compare and analyze the deception detection performance of PCS, Ratio, and PCSR algorithms. The experimental results show that PCSR has higher detection probability and accuracy, better immediacy and robustness, and a wider detection range. The proposed PCSR algorithm combines the advantages of both PCS and Ratio algorithms and has better spoofing detection performance.

     

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