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Issue:
Research and Analysis of Marine FOG Random Drift
Author(s):
LI Di
,
SUN Yao
,
LI Xu-you
,
HUANG Pin
Pages:
35
-
37,58
Year:
2005
Issue:
1
Journal:
NAVIGATION OF CHINA
Keyword:
船舶、舰船工程
;
船用光纤陀螺
;
研究
;
随机漂移
;
Allan方差
;
船舶导航
;
Abstract:
随机漂移是影响船用光纤陀螺精度的主要因素.对随机漂移进行建模并在系统中加以补偿是提高船用光纤陀螺及其导航系统精度的关键.本文对可用于精密仪器随机漂移研究的Allan方差法加以改进,将数字信号处理中加窗函数的方法应用于计算Allan方差,解决了某些频段内由于频混造成的随机漂移表征不唯一的问题.通过对光纤陀螺实测数据进行计算,得出各种随机漂移的系数,实验证明这是对光纤陀螺随机漂移进行研究的有效方法.
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