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Geomagnetism Compensation Based on Disturbance Analysis for Shipboard and Underwater Attitude Determination
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YE Ping,ZHANG Yanhua,ZHAI Chuanrun,ZHAN Xingqun
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(School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China)
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Abstract An analysis of magnetic disturbance was made and the geomagnetism under different disturbance was discussed based on turntable tests. Geomagnetism compensation was also proposed by employing mathematic fitting to eliminate heading errors caused by fixed magnetic disturbance. The experimental results demonstrate that the fitting compensation can remove magnetic errors effectively and can provide stable heading with an accuracy of 2.00°.
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Received: 20 October 2009
Published: 28 September 2010
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