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Journal of Projectiles, Rockets, Missiles and Guidance >

2021 , Vol. 41 >Issue 2: 10 - 14

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.02.003

Autonomously Navigating Simulation System Based on Global Geomagnetic Anomaly Grid

  • TIAN Fengmin 1 ,
  • BIAN Leixiang 2 ,
  • WANG Hongbo 2
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  • 1 Nanjing Institute of Technology,Nanjing 211167,China
  • 2 Nanjing University of Science and Technology,Nanjing 210094,China

Received date: 2020-05-27

  Online published: 2025-02-25

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Abstract

In some scenarios there are no navigation satellite signals, moving platforms can use geomagnetic anomaly field to correct their inertial navigation error. An overall scheme of simulation system for geomagnetic inertial integrated navigation based on EMAG2, which released by NOAA’s National Centers for Environmental Information with a resolution of 2' is proposed. Themes as magnetic field continuation, geomagnetic magnitude synthetizing, system modeling and solving are analyzed. The simulation results show that the maximum position error can be controlled within 0.3~1.7 grids and the root mean square error can be controlled within 0.1~0.7 grids for different precision strap-down INS assisted with geomagnetic grid.

Key words： geomagnetic anomaly field; integrated navigating simulation; natural neighbor interpolation

Cite this article

TIAN Fengmin , BIAN Leixiang , WANG Hongbo . Autonomously Navigating Simulation System Based on Global Geomagnetic Anomaly Grid[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2021 , 41(2) : 10 -14 . DOI: 10.15892/j.cnki.djzdxb.2021.02.003

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