Abstract:
According to the characteristics of noise error by MEMS gyroscope, heuristic drift reduction (HDR) was adopted to realize realtime estimation and drift compensation. Double lowpass filters were added to remove the effect of swing problem during carrier operation. The signal time delay by double lowpass filter was eliminated by a signal link to improve the attitude estimating accuracy of MEMS gyroscope. The threshold function was designed to solve the bending and steering problems in the process of operation. Allan variance was applied to evaluate the compensated error, and the experiment was carried out on the platform of MCROV underwater robot. The results show that after HDR compensation, the errors of gyroscope are significantly reduced, and the output precision of gyroscope is remarkably improved.
曾庆军, 刘慧婷, 张明. 基于HDR的陀螺仪随机漂移分析与处理[J]. 江苏大学学报(自然科学版), 2016, 37(3): 332-336.
ZENG Qing-Jun, LIU Hui-Ting, ZHANG Ming. Analysis and processing on random drift of gyroscope based on HDR[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2016, 37(3): 332-336.