摘要
数字磁罗盘误差的补偿方法很多,从数字磁罗盘的自差分析出发,提出了一种基于椭圆假设的补偿方法,并通过实验检验了数字磁罗盘自差补偿方法的效果。实验结果表明,该算法可以有效修正环境磁场误差,在未补偿前,数字式磁罗盘航向角的最大误差达到6.2°;经过校正后,航向角的最大剩余误差为1.3°,误差减小率达到79%。
Digital magnetic compass has a lot of error compensations methods. By analysing the digital magnetic compass deviation, a novel method has been proposed for correcting the errors based on the ellipse hypothesis, and the effect of digital magnetic compass deviation compensation method was experimentally verified. The experimental results show that the method is effective for the environmental magnetic field error correction. Digital magnetic compass heading angle has maximum error of 6.2°; and 1.3°; before and after compensation, respectively, error reduction rate decreasing by 79%.
出处
《磁性材料及器件》
CAS
2015年第5期57-59,69,共4页
Journal of Magnetic Materials and Devices
基金
国家自然科学基金资助项目(41201478)
关键词
数字磁罗盘
误差补偿
椭圆假设
digital compass
error compensation
ellipse hypothesis
