Error-separation method for the calibration of magnetic compass

doi:10.1016/j.sna.2016.09.024

	Error-separation method for the calibration of magnetic compass
	Chu, Zhiwei 1,2,3; Lin, Xinhua 1,2; Gao, Ke 1,2,3; Chen, Chilai 1,2
	2016-10-15
发表期刊	SENSORS AND ACTUATORS A-PHYSICAL
摘要	Magnetic compass is widely used in the navigation system by measuring the orientation of the earth's magnetic field and must be calibrated before used to eliminate the errors caused by the bias, misalignment, inconsistence in sensitivity, etc. In this paper, the fully digital magnetic compass was developed by using magnetic-induced magnetometers and MEMS accelerometers and the error-separation method based on a non-magnetic three-axis rotation platform was presented to calibrate the magnetic compass. The parameters about misalignment and non-orthogonality of the sensor axes and the response curve of the sensor's output signals to earth magnetic fields were obtained. Furthetly, the sensitivity of magnetometers and the bias from the offset and hard-magnetic interference were estimated according to the response curve. The independent effect of non-orthogonality and misalignment, bias and inconsistence in sensitivity on the heading error can be evaluated with the error-separation method, respectively. After calibration, the maximum heading error of magnetic compass was about 0.4 degrees when both pitch angle and roll angle were in the range from -60 degrees to 60 degrees, indicating the error-separation method is effective and efficient to calibrate magnetic compasses. (C) 2016 Elsevier B.V. All rights reserved.
文章类型	Article
关键词	Magnetic Compass Calibration Error Separation Non-magnetic Platform
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.sna.2016.09.024
关键词[WOS]	NAVIGATION SYSTEMS
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Instruments & Instrumentation
WOS类目	Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000386404000024
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/21365
专题	中科院合肥智能机械研究所
作者单位	1.Chinese Acad Sci, Inst Intelligent Machines, State Key Lab Transducer Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Sch Informat Sci & Technol, Dept Automat, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Intelligent Machines, Key Lab Biomimet Sensing & Adv Robot Technol Anhu, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Chu, Zhiwei,Lin, Xinhua,Gao, Ke,et al. Error-separation method for the calibration of magnetic compass[J]. SENSORS AND ACTUATORS A-PHYSICAL,2016,250(无):195-201.
APA	Chu, Zhiwei,Lin, Xinhua,Gao, Ke,&Chen, Chilai.(2016).Error-separation method for the calibration of magnetic compass.SENSORS AND ACTUATORS A-PHYSICAL,250(无),195-201.
MLA	Chu, Zhiwei,et al."Error-separation method for the calibration of magnetic compass".SENSORS AND ACTUATORS A-PHYSICAL 250.无(2016):195-201.

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