摘要
本文研制了一种基于磁阻传感器和MEMS加速度传感器的三轴磁阻电子罗盘,介绍了该系统的测量原理、硬件设计以及软件算法流程。分析了影响该系统航向角测量精度的误差来源,采用基于最小二乘24位置罗差补偿法以及现场的采样数据对罗差进行校正,系统最大误差可从±35.7°降至±1.33°。实验证明,该系统可应用于普通导航领域。
A 3-taxes magnetoresistive electronic compass is developed, which is based on magnetoresistive sensor and ME：MS accelerometer. The metrical principle, hardware design and software flow chart of the system are introduced. Using the arithmetic of 24 position error compensation based LSM and spot sampling data to compensate the environment error, and the maximum error of the compass system is down from 35. 7° to 1. 33°. The experiment shows that the compass system can he used in common navigation field.
出处
《电子测量技术》
2008年第6期140-142,共3页
Electronic Measurement Technology
基金
延安大学专项科研启动基金资助项目(YD2007-85)
西北工业大学研究生创新基金资助项目(05060)
