Tilt-Induced-Error Compensation for 2-Axis Magnetic Compass with 2-Axis Accelerometer

Author

Xisheng, Li ; Ruiqing, Kang ; Xiongying, Shu ; Guanghua, Yu

Author_Institution

Univ. of Sci. & Technol. Beijing, Beijing, China

Volume

3

fYear

2009

fDate

March 31 2009-April 2 2009

Firstpage

122

Lastpage

125

Abstract

This paper presents an efficient tilt compensation algorithm for the low cost two-axis magnetic compass. The general magnetic compass module consists of a three-axis magnetic compass and a two-axis inclinometer to calculate tilt-compensated azimuth information. In the interest of reducing the cost, a two-axis magnetic compass with a two-axis accelerometer is developed in this paper. The third-axis data of the magnetic compass is estimated using earth magnetic field information. The tilt-induced-error is compensated using the estimated data and measurement data. Results of experiment show that this algorithm can be used to realize tilt-compensation for 2-axis magnetic compass.

Keywords

accelerometers; compasses; error compensation; error compensation; tilt compensation algorithm; two axis accelerometer; two axis inclinometer; two axis magnetic compass; Accelerometers; Anisotropic magnetoresistance; Azimuth; Earth; Magnetic anisotropy; Magnetic confinement; Magnetic field measurement; Magnetic sensors; Magnetostatics; Perpendicular magnetic anisotropy; algorithm; compensation; magnetic compass;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Engineering, 2009 WRI World Congress on

Conference_Location

Los Angeles, CA

Print_ISBN

978-0-7695-3507-4

Type

conf

DOI

10.1109/CSIE.2009.477

Filename

5170813