S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
A Calibration Technique for a Two-Axis Magnetic Compass in Telematics Devices
- Cho, Seong Yun; Park, Chan Gook
- Issue Date
- ETRI Journal, Vol. 27, No.3, June 2005, pp. 280-288.
- This paper presents an efficient algorithm for using the two-axis magnetic compass in portable devices. The general magnetic compass module consists of a three-axis
magnetic compass and a two-axis inclinometer to calculate tilt-compensated azimuth information. In this paper, the tilt error is compensated using just a two-axis magnetic
compass and two-axis accelerometer. The third-axis data of the magnetic compass is estimated using coordinate information that includes the extended dip angle and tilt
information. The extended dip angle is estimated during the normalization process. This algorithm can be used to provide the tilt-compensated heading information to small
portable devices such as navigation systems, PDAs, cell phones, and so on.
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