Modeling and simulation of the geomagnetic field vector measurement on the underwater vehicle

The theory of geomagnetic navigation on underwater magnetic vehicle is complicated and the development of geomagnetic field vector measuring system is difficult, so in order to improve the actual effect, it is a important way for using the finite element software on the computer to complete the modeling and simulation research. In this paper, the space distribution characteristics of magnetic field around the magnetic vehicle is analyzed, and the geomagnetic field vector measuring mathematical model is established. Then the simulation method and result are given by the united simulation system of Comsol Multiphysics and Matlab which is independent built and secondary development. The results show that the human-computer interaction interface of united simulation system is simple and convenient, not only accomplishing a magnetic field characteristic analysis and numerical calculation function, but also realizing magnetic field vector data post-processing, and the precision of computational results is very high.