ARMA模型在光纤陀螺惯导系统寻北中的应用

在光纤陀螺捷联惯导系统寻北过程中,光纤陀螺的随机漂移是影响其精度的重要因素。论文提出了一种建立三阶自回归模型AR（3）方法,实现了高精度FOG捷联惯导系统静态输出信号的在线建模,并采用强跟踪卡尔曼滤波技术进行误差的实时滤波。寻北试验结果表明,寻北精度有了明显的提高,从而验证了方法的可行性,具有工程实用性。

Applications of ARMA Model in the FOG Inertial Navigation System North Seeker

The optical fiber gyro random drift is the important factor of influence aiming accuracy in the north seeker of the inertial navigation system.A third-order model is established and an algorithm is given to achieve high-precision of output.The on-line modeling is realized and the strong tracking filter is used to achieve the Real-time filtering.By the north seeker test,the north seeker accuracy has been significantly improved.It is feasibility and practicality for the engineering practicality.