摘要
将传统的水平电子罗盘通过倾斜补偿算法延伸至空间电子罗盘,再经过椭球拟合校准法对罗盘的硬磁、软磁、比例系数及未对准误差进行补偿,形成完整的电子罗盘使田规范,最后,实物对比实验给出基于HMC5883磁阻传感器与ADXL345捷联的三维电子罗盘精度为1°。
In this paper, a traditional electronic compass is developed into a three-dimension compass with the tilt compensation algorithm. Then, the ellipsoid fitting compensation algorithm is used to calibrate hard-iron, soft- iron, scalar-factor and misalignment error in the compass. So an application specification of electronic compass is formed in full. Finally the experiments of three-dimension electronic compass prototype based on HMR3000 and HMC5883 are done and the results show that the accuracy of compass is within 1°.
出处
《传感器世界》
2015年第8期14-17,共4页
Sensor World
关键词
电子罗盘
倾斜补偿
磁补偿
椭球拟合
electronic compass
tilt compensation
magnetic compensation
ellipsoid fitting
