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机抖激光陀螺误差输出特性的分析

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Abstract:

抖动机构作为机抖激光陀螺的关键环节,其参数的选择直接影响着机抖激光陀螺的误差输出特性.为了在陀螺设计时选择最佳抖动参数,提高机抖激光陀螺的测量精度,根据抖动偏频的基本原理,对抖动参数对机抖激光陀螺的偏置误差、刻度因子误差、角度随机游走误差的影响进行了深入分析.结果表明机抖激光陀螺的偏置误差随着抖动幅度的减小而减小;在一定范围内刻度因子误差随着抖动幅度的增大而增大,超出这个范围随着抖动幅度的增大而减小;减小抖动角幅度可减小角度随机游误差.

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