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A geomagnetism aided inertial navigation system for UAVs is studied and emphasis is laid on the research of magnetic matching method. In view of specialty of UAV and error properties of inertial navigation system, a simplification is given to the whole one-dimension matching process, which leads to an affine transformation with a compensation step. An iterative multi-level matching method is proposed...
Geomagnetic field is one of the geophysical fields of the Earth and can be used to limit the error accumulation of the inertial navigation system (INS). A geomagnetic aided navigation system is proposed in the paper. Two alternate processes are designed in the system - the match and the filter. In the former part, a contour constraint based correlation method is used to eliminate the initial position...
Geomagnetism aided navigation (GAN) is a new branch of the integrated navigation technique. The navigation principle and the development of the GAN system are introduced in the paper and the emphasis is laid on the research of the matching method. Geomagnetic matching is the technique that uses a magnetic map to determine the location and the obtained position information can be used to limit error...
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