摘要
介绍了磁阻传感器和倾角传感器的工作原理,分析了无人机飞行过程中俯仰和滚动对方位角测量精度的影响,基于三轴倾角传感器ADXL335、三轴磁阻传感器HCM5883L和C8051F350单片机设计了一种新型的无人机磁方位传感器。本文基于时间的线性特征,提出了一种新型的误差校正方法,提高了方位测量精度。实验证明,该方位传感器精度较高、可靠性好,能够满足无人机方位角测量要求。
In the paper,the working principle of magnetism sensor and obliquity sensor is introduced, and the influence of pitch and roll angle measurement accuracy of the UAV during the flight is analyzed. A new type of UAV magnetic orientation sensor is designed, which is based on tri-axial obliquity sensor ADXL335, tri-axial magnetism sensor HCM5883L and C8051F350. According to the linear feature of time, a new method for error revising is proposed, which improves the precision of azimuth-measure. The experimental results show that the azimuth sensor has high precision and good reliability,and can meet the requirement of UAV azimuth angle measurement.
出处
《单片机与嵌入式系统应用》
2016年第9期27-30,共4页
Microcontrollers & Embedded Systems
