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《Engineering of Surveying and Mapping》 2011-01
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The study of some key technology in geomagnetic matching navigation

WANG Xiang-lei(Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)  
The essential of geomagnetic matching navigation is digital map matching.Geomagnetic data precision and the choice of the geomagnetic adapted district are the key factors which influence the precision of geomagnetic matching navigation.In the paper,the Kriging method is introduced to the technology of reconstruction of geomagnetic map;the results indicate that the Kriging method can increase the resolving power of the geomagnetic map,which is favorable for the geomagnetic matching navigation.The statistical character selected method and the entropy selected method are introduced to choose the geomagnetic adapted district.Simulation results show that the entropy selected method has low computational cost and better general performance;compared the geomagnetic adapted with different orientation in the same area,it has better applications.
【Fund】: 国家自然科学基金资助项目(40774031);; 卫星导航与定位教育部重点实验室(B类)开放基金资助项目(GRC-2009010)
【CateGory Index】: P318
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