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http://dx.doi.org/10.5394/KINPR.2017.41.4.189

A Study on Automatic Correction Method of Electronic Compass Deviation Using the Geostationary Satellite Azimuth Information  

Lee, Jae-Won (Defense Agency for Technology and Quality)
Lee, Geon-Ho (Defense Agency for Technology and Quality)
Publication Information
Journal of Navigation and Port Research / v.41, no.4, 2017 , pp. 189-194 More about this Journal
Abstract
The Moving Search Radar System (MSRS) monitors sea areas by moving along the coast. Since the radar is initially aligned to the front of the vehicle, it is important to know the changes in the heading azimuth of the vehicle to quickly acquire the target azimuth from the radar after the MSRS has moved. The heading azimuth can be obtained using the gyro compass, the GPS compass or the electronic compass. The electronic compass is suitable for MSRS requiring fast maneuverability due to its small volume, short stabilization time and low price. However, using a geomagnetic sensor may result in an error due to the surrounding magnetic field. Errors can make early automatic tracking of the satellites difficult and can reduce the radar detection accuracy. Therefore, this paper proposes a method to automatically compensate for the error reflecting the correction value on the radar obtained by comparing the reference azimuth calculated by solving the geodesic inverse problem using two coordinates between the radar and the geostationary satellite with the actually-directed azimuth angle of the satellite antenna. The feasibility and convenience of the proposed method were verified by applying it to the MSRS in the field.
Keywords
Moving Search Radar System; Heading Azimuth; Electronic Compass; Geomagnetic Sensor; Geodesic Inverse Problem; Detection Accuracy;
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Times Cited By KSCI : 3  (Citation Analysis)
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