基于GM(1,1)模型的光纤陀螺随机漂移建模  

Modeling of Fiber Optic Gyroscope Random Drift Based on GM(1,1) Model

作　　者：郭铃[1] 吴训忠[1] 金毅[1] 宋吉磊[1] 

机构地区：[1]空军工程大学航空航天工程学院,西安710038

出　　处：《导弹与航天运载技术》2013年第5期41-43,共3页Missiles and Space Vehicles

摘　　要：针对差分法在陀螺随机漂移建模中的缺陷,提出将GM(1,1)模型与AR模型相结合的非平稳序列建模方法,将光纤陀螺随机漂移分为确定性的趋势项部分和平稳序列部分,并引入GM(1,1)模型用于提取趋势项,通过AR模型对平稳序列建模,最终实现光纤陀螺随机漂移的非平稳时序建模。分析表明,该模型拟合精度较高,是光纤陀螺随机漂移建模的一种有效方法。According to the bug of the difference method applying in the modeling of the gyro＇s random drift, this paper introduced a non-stationary time series modeling method combining the AR model with the GM（1,1） model, which divided the random drift of the Fiber Optic Gyroscope （FOG） into two parts, the certain trend term and the stationary time series, then distilled the trend term through the GM（1,1） model, and established the AR model of the stationary sequence, and finally got the non-stationary time series model of the FOG＇s random drift. It suggests that the model has a high simulate precision and can be an efficient way for the modeling of the FOG＇s random drift.

关 键 词：光纤陀螺 随机漂移 GM（1  1） AR模型 

分 类 号：V241[航空宇航科学与技术—飞行器设计]