Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-05T10:55:02.324Z Has data issue: false hasContentIssue false
  • English
  • Français

Feature Extraction and Geomagnetic Matching

Published online by Cambridge University Press:  07 August 2013

Caifa Guo ,
Hong Cai  and
G.H.M. van der Heijden
Caifa Guo*
Affiliation:
(College of Aerospace and Material Engineering, National University of Defence Technology , Changsha, China) (Department of Civil, Environmental & Geomatic Engineering, University College London)
Hong Cai
Affiliation:
(College of Aerospace and Material Engineering, National University of Defence Technology , Changsha, China)
G.H.M. van der Heijden
Affiliation:
(Department of Civil, Environmental & Geomatic Engineering, University College London)
*
(E-mail: [email protected])
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, some improvements in feature extraction for geomagnetic matching are made. Geomagnetic entropy is extracted from the total intensity of the geomagnetic field and its performance for navigation is tested with real geomagnetic data. The matching progress is divided into two phrases: rough matching and precise matching. In the rough matching phase, a sub-region that includes the real position is obtained by using the total intensity of the geomagnetic field as the matching feature. The entropy is applied to precise matching in the sub-region to obtain the final result. Simulations show that the navigation effect is significantly improved with the entropy as an assistant feature. The combined match probability is much better than the results derived from those using only total intensity as the matching feature. This is especially true when the flight vehicle passes through an area without abundant magnetic information.

Keywords

Feature extractionGeomagnetic navigationGeomagnetic matchingEntropy
Type
Research Article
Information
The Journal of Navigation , Volume 66 , Issue 6 , November 2013 , pp. 799 - 811
Copyright
Copyright © The Royal Institute of Navigation 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Ejaz, M., Iqbal, J., Ahsarr, N., and Nawaz, A. (2009). Robust Geomagnetic Aided Inertial Navigation of Underwater Vehicles using the ICP Algorithm. 2009 Second Asia-Pacific Conference on Computational Intelligence and Industrial Applications, Wuhan, China.Google Scholar
Goldenberg, F. (2006). Geomagnetic Navigation beyond Magnetic Compass. The Position Location and Navigation System conference (PLANS), San Diego, California, 684–694.Google Scholar
Guo, C.F., Cai, H., and Hu, Z.D. (2013). Nonlinear filtering techniques for geomagnetic navigation. Journal of Aerospace Engineering, Part G of the Proceedings of the Institution of Mechanical Engineers, 2013, doi:10.1177/0954410013476639.Google Scholar
Li, M.M., Lu, H.Q., Yin, H., and Huang, X.L. (2011). Novel Algorithm for Geomagnetic Navigation. Journal of Central South University of Technology, 18, 791–799.CrossRefGoogle Scholar
Lin, Y., Yan, L., and Tong, Q.X. (2007). Underwater Geomagnetic Navigation Based on ICP algorithm. Proceedings of the 2007 IEEE International Conference on Robotics and Biomimetics, Sanya, China.Google Scholar
Psiaki, M.L., and Huang, L. (1993). Ground Tests of Magnetometer-Based Autonomous Navigation(MAGNAV) for Low-Earth-Orbiting Spacecraft. Journal of Guidance, Control, and Dynamics, 16, 206–214.CrossRefGoogle Scholar
Qiao, Y.K, Wang, S.C., and Zhang, Q. (2007). Selection of the characteristic variable Of geomagnetism for matching. Seismological and Geomagnetic Observation and Research, 28, 42–46.Google Scholar
Wang, S.C., Wang, Z., Zhang, J.S., and Qiao, Y.K. (2009). Technology of preparation of reference map using total geomagnetic intensity gradient module. Systems Engineering and Electronics, 31, 881–885.Google Scholar
Zhou, J., Ge, Z.L., Shi, G.G., and Liu, Y.X. (2008). Key Technique and Development for Geomagnetic Navigation. Journal of Astronautics, 29, 1467–1472.Google Scholar
Zheng, H., Wang, H.B., Wu, L., Chai, H., and Wang, Y. (2013). Simulation Research on Gravity-Geomagnetism Combined Aided Underwater Navigation. The Journal of Navigation, 66, 83–98.CrossRefGoogle Scholar