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Random error analysis and modeling for micromechanical gyro of transplanter
Authors
刘晓光
李逃昌
+3 more
白晓平
胡静涛
高雷
Publication date
1 January 2013
Publisher
Abstract
微机械陀螺广泛应用于组合导航系统。以插秧机GPS/INS组合导航系统为研究背景,针对微机械陀螺的误差进行了研究。为了提高插秧机组合导航系统的定位精度,首先通过分析微机械陀螺的工作原理对微机械陀螺的误差来源和分类进行了深入的分析,说明微机械陀螺的随机误差是影响插秧机组合导航系统定位精度的一个主要因素。然后基于时间序列的分析建立了微机械陀螺的AR随机误差模型,并利用此模型采用Kalman滤波算法对采集的试验数据进行处理。实验结果表明,在采用AR模型后,微机械陀螺的随机误差的方差减小了一个数量级,随机误差的幅值也明显减小
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Last time updated on 29/11/2016