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The Vector Matching Method in Geomagnetic Aiding Navigation
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DOI：10.3390/s16071120.png)
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摘要
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In this paper, a geomagnetic matching navigation method that utilizes the geomagnetic vector is developed, which can greatly improve the matching probability and positioning precision, even when the geomagnetic entropy information in the matching region is small or the geomagnetic contour line's variety is obscure. The vector iterative closest contour point (VICCP) algorithm that is proposed here has better adaptability with the positioning error characteristics of the inertial navigation system (INS), where the rigid transformation in ordinary ICCP is replaced with affine transformation. In a subsequent step, a geomagnetic vector information fusion algorithm based on Bayesian statistical analysis is introduced into VICCP to improve matching performance further. Simulations based on the actual geomagnetic reference map have been performed for the validation of the proposed algorithm.
Keyword:
geomagnetic matching
inertial navigation system
iterative closest contour point
Bayesian theory
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IF:
3.5
论文数:
7.2W
被引数:
20.9W
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