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Volume 48 Issue 6
Dec.  2023
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YAN Zeyi, SHEN Tiyan, YU Jiacheng. Seafloor terrain matching navigtion algorithm based on terrain variance entropy[J]. GNSS World of China, 2023, 48(6): 67-71. doi: 10.12265/j.gnss.2023137
Citation: YAN Zeyi, SHEN Tiyan, YU Jiacheng. Seafloor terrain matching navigtion algorithm based on terrain variance entropy[J]. GNSS World of China, 2023, 48(6): 67-71. doi: 10.12265/j.gnss.2023137
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Seafloor terrain matching navigtion algorithm based on terrain variance entropy

doi: 10.12265/j.gnss.2023137
  • 1.

    China University of Geosciences, Wuhan 430074, China

  • 2.

    North China Institute of Science and Technology, Langfang 065201, China

  • 3.

    School of Government Peking University, beijing 100871, China

  • Received Date: 2023-07-11
  • Accepted Date: 2023-07-11
    • Available Online: 2023-12-22
    Abstract
  • The principle of information entropy is applied to seafloor terrain matching navigation, and the terrain variance entropy is established. The matching algorithm including the search phase and the positioning phase is designed. The position error accumulated over time by inertial navigation system (INS) is corrected through coarse matching and fine matching. Further, the actual seafloor data is used for simulation. Results show that the position matching of longitude and latitude has a fast convergence speed, it can effectively correct the position error of inertial navigation system. This method has the advantages of high accuracy and good stability, and has certain practical value.

     

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