发明名称 METHOD AND DEVICE FOR CALIBRATING A MAGNETIC SENSOR
摘要 Measurements are acquired from a magnetic sensor during a non-pre-ordered movement, and a plurality of sets of solutions are determined for respective expected values of intensity of the Earth's magnetic field. The solutions are defined by a plurality of parameters, including at least one gain value for each detection axis of the magnetic sensor. For each solution, a figure of merit is determined, correlated to a calibration error, and a partial solution is selected in each set of solutions, based on the figure of merit. Once a gain confidence interval has been defined, a calibration solution is selected based on the figure of merit, from among the partial solutions having respective gain values all falling within the gain confidence interval.
申请公布号 US2009070056(A1) 申请公布日期 2009.03.12
申请号 US20080196513 申请日期 2008.08.22
申请人 STMICROELECTRONICS, S.R.I. 发明人 VOCALI FRANCESCO;BIGANZOLI FABIO
分类号 G01C17/38 主分类号 G01C17/38
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