摘要
针对iIMU-FSAS光纤陀螺仪静态26位置法标定结果无法收敛的问题,提出了由外框轴提供稳定转速的匀速率26位置法标定方案,从理论上与静态26位置法进行了对比分析;采用该方法对i IMU-FSAS陀螺仪进行了多天的标定实验,结合静态26位置法有限次迭代的结果,对匀速率26位置法标定参数(零偏、标度因数和安装误差)的合理性和重复性等进行了分析。结果表明:与静态26位置法相比,匀速率26位置法的标定结果不仅能够收敛,且标定结果合理、性能稳定。
To solve the non-convergence problem of the static 26-position method in calibrating i IMU-FSAS fiber optic gyroscope, a uniform-rate 26-position method based on 12-parameter error model is proposed, in which the three-axis turntable is required to be able to provide stable angular rate along outer-axis to improve the gyro＇s input level. To test this new method, the experiments based on the i IMU-FSAS gyroscope are made for several days, and then the rationality and repeatability analysis are made through comparing the calibration results（bias, scale factor and installation error） between the static 26-position method using limited iterations and the proposed method. Experiment results show that, compared with the static 26-position method, the results by the new method is convergent, more reasonable and repeatable.
作者
刘万科
宋宇
朱锋
朱智勤
LIU Wan-ke SONG Yu ZHU Feng ZHU Zhi-qin(School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China Collaborative Innovation Center of Geospatial Technology, Wuhan University, Wuhan 430079, China Key Laboratory of Geospace Environment and Geodesy of Ministry of Education, Wuhan University, Wuhan 430079, China Wuhan Hi-Target Digital Cloud Technology Co. Ltd., Wuhan 430000, China)
出处
《中国惯性技术学报》
EI
CSCD
北大核心
2017年第1期103-108,共6页
Journal of Chinese Inertial Technology
基金
国家重点研发计划项目(2016YFB0501803)
国家自然科学基金(91638203)
