光学技术, 2013, 39 (4): 328, 网络出版: 2013-09-04  

光纤陀螺随机漂移建模及其在惯导误差方程中的应用

Building model of the drift of the fiber optic gyroscope and application in the error equation of inertial navigation system
作者单位
空军工程大学 航空航天工程学院, 陕西 西安 710038
摘要
针对光纤陀螺随机漂移模型时序无法直接应用卡尔曼滤波分析的问题, 在对陀螺漂移建模分析的基础上, 利用一阶马尔柯夫过程等效拟合陀螺漂移模型, 并通过Allan方差分析拟合的合理性。对惯导系统误差方程进行了状态扩充, 为进一步实现导航系统的滤波分析奠定了理论基础。
Abstract
According to the bug of Kalman filter applying in the analysis of the Fiber Optic Gyroscope (FOG)’s random drift, a method based on the modeling and the analysis is introduced, the gyro’s drift model with the first-order Markov process is simulated equivalently, the rationality of the simulation with the Allan variance is analyzed. The state equation of the inertial navigation system’s error equation is extended, the theory foundation of the future carrying out of the filter and analysis of the navigation system is established.
参考文献

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郭铃, 吴训忠, 金毅. 光纤陀螺随机漂移建模及其在惯导误差方程中的应用[J]. 光学技术, 2013, 39(4): 328. GUO Ling, WU Xunzhong, JIN Yi. Building model of the drift of the fiber optic gyroscope and application in the error equation of inertial navigation system[J]. Optical Technique, 2013, 39(4): 328.

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