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Proceedings Paper

A new approach to geomagnetic matching navigation
Author(s): Zhi-lei Ge; Jun Zhou
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Paper Abstract

A new method of global optimal matching theory based on linear drawing of geomagnetic filed is proposed and researched. Navigation system based on the geomagnetic field has no accumulated error, and it is not influenced by weather, terrain and other factors as it is passive. Thus, geomagnetic navigation has good potentials to be an assistant method for other navigation systems such as inertial navigation system. The matching navigation method avoids the disadvantages of Kalman filter because it makes use of a set of relative information. In the literatures, the forming principle of linear drawing is discussed. A necessary global optimal matching technique is researched because matching a linear drawing with a standard planar chart results in infinite instances and the previous mismatch will affect the following process. Correlation method is applied in the matching process for its simpleness. Genetic simulated annealing algorithm is applied in the optimal researching process for its rapid convergence and global optimization. Mathematical simulations are carried out to verify the correctness and efficiency of the new solution. The results are listed in the end, which prove the rightness of the methods proposed in this paper.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67952K (10 November 2007); doi: 10.1117/12.774829
Show Author Affiliations
Zhi-lei Ge, Northwestern Polytechnical Univ. (China)
Jun Zhou, Northwestern Polytechnical Univ. (China)

Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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