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《Journal of Ordnance Equipment Engineering》 2018-06
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Based on Difference-Quotient Method Measure of Roll Angle by Geomagnetic for Spin Projectile

XIE Yang;YU Jiyan;ZNDY of Ministerial Key Laboratory,Nanjing University of Science and Technology;  
The difference-quotient method was deduced to improve the calculation accuracy of the roll angle and to eliminate the error cased by scale factor and bias in the sensor for the high spin projectile.The results indicated that,by using the difference-quotient method,its calculation error is less than 1 degree. Meanwhile,when the roll gap is equal to π/2 or 3π/2,the calculation error can reach the minimum. Otherwise,the highly robustness of the difference-quotient method for the scale factor and bias in calculating the roll angle of the high spin projectile provides reference for engineering application.(
【Fund】: 国家自然科学基金项目(11402121)
【CateGory Index】: TJ410
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