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旋转式光纤陀螺惯导系统随机误差抑制技术

, PP. 1203-1207

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Abstract:

采用旋转调制技术能够有效降低陀螺常值漂移和加速度计常值零偏对导航系统精度的影响,但其对陀螺随机漂移和噪声几乎没有抑制作用.惯导系统在随机干扰的作用下输出误差将发散,影响系统长时间的导航定位能力.通过对抑制随机干扰误差的阻尼技术进行研究,提出一种具有阻尼特性的旋转式光纤陀螺惯导系统,利用阻尼技术抑制随机干扰对导航系统精度的影响.从仿真结果可以看出,具有阻尼特性的单轴旋转光纤陀螺惯导系统精度提高1倍以上.当系统采用更高精度的惯性仪表时,随机误差的阻尼抑制效果将更明显.

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