【摘要】 可穿戴设备中往往会需要测量地磁场来计算设备姿态以提高用户的体验。为了提高磁传感器采集数据的精度,文章提出了一种三轴磁传感器标定方法。该方法通过提出新的损失函数和对数据加权,使得校正后的数据在传感器处于不同姿态下误差更小。在外界磁场存在噪声强度为2.72%的模拟数据上,传统方法在不同姿态误差均值最大可达到6.59%,而文中方法最大仅为2.9%。更多还原

【Abstract】 Wearable devices often require measurements of the geomagnetic field to calculate the attitude of the device to improve the user experience.In order to improve the accuracy of magnetic sensor data acquired,a three-axis magnetic sensor calibration method is proposed by introducing a new loss function and adding weights to data,which makes the error of corrected data smaller when the sensor is in different attitudes.In the conditions that the noise intensity is 2.72% in external magnetic field,the max mean error of traditional methods under different attitude is up to 6.59%,while the max error of the method in this paper is just 2.9%.更多还原