Attitude Heading Reference System Using MEMS Inertial Sensors with Dual-Axis Rotation

作者：Kang, Li; Ye, Lingyun^*; Song, Kaichen; Zhou, Yang

来源：Sensors (Switzerland), 2014, 14(10): 18075-18095.

DOI：10.3390/s141018075

• AHRS
• attitude sensor
• MEMS inertial sensor
• error compensation

This paper proposes a low cost and small size attitude and heading reference system based on MEMS inertial sensors. A dual-axis rotation structure with a proper rotary scheme according to the design principles is applied in the system to compensate for the attitude and heading drift caused by the large gyroscope biases. An optimization algorithm is applied to compensate for the installation angle error between the body frame and the rotation table's frame. Simulations and experiments are carried out to evaluate the performance of the AHRS. The results show that the proper rotation could significantly reduce the attitude and heading drifts. Moreover, the new AHRS is not affected by magnetic interference. After the rotation, the attitude and heading are almost just oscillating in a range. The attitude error is about 3 degrees and the heading error is less than 3 degrees which are at least 5 times better than the non-rotation condition.

• 出版日期2014-10
• 单位浙江大学