A Fast Algorithm of the Geomagnetic Correlation Matching Based on MSD

In this paper, a fast algorithm of the geomagnetic correlation matching based on MSD (mean square difference) is proposed. According to Taylor formula, the expression of MSD is transformed using the gradient of the magnetic field intensity. By introducing the parallelism constraint, the regularization model is established. Linear equations can be obtained with the help of minimizing the regularization model. Then Jacobi iteration is used to obtain the matching result by solving equations. Finally, the results are confirmed by simulation. Keywords-geomagnetic navigation, geomagnetic matching, MSD.