Design of Magnetic Azimuth Measurement System Based on GMR Sensor
Magnetic azimuth is one of the important parameters of the directional navigation, it provides an important basis for navigation. First, the author deduces the mathematical model of geomagnetic azimuth measurement system, and achieves the full range of measurement of magnetic azimuth through the method of quadrant discriminant. Then, in this paper, it introduces the hardware and software design of the magnetic azimuth measurement system based on the GMR sensor, accelerometer, temperature sensor and microprocessors etc. Finally, this paper gives the actual measurement results of the azimuth measurement system rotated in the horizontal plane. The results show that the system can accurately capture faint magnetic changes, which will meet the requirements of the navigation orientation, and provide a reliable magnetic field data and realize basis for the magnetic azimuth calculation.
GMR Sensor Magnetic Azimuth Quadrant Discriminant Method
Xueli Zheng Jingqi Fu
School of Mechanical and Electrical Engineering and Automation, Shanghai University, Shanghai 200072, China
国际会议
The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)
太原
英文
3281-3284
2012-05-23（万方平台首次上网日期，不代表论文的发表时间）