文章基本信息

标题：A Calibration Technique for a Two-Axis Magnetic Compass in Telematics Devices
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作者：Cho, Seong-Yun ; Park, Chan-Gook
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2005
卷号：27
期号：3
页码：280-280
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：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.
关键词：Two-axis magnetic compass;tilt error compensation;extended dip angle