速率偏频激光陀螺导航系统初始对准方法研究

对速率偏频激光陀螺导航系统在静基座条件下的初始对准方法进行了研究，提出了一种高精度静基座初始对准方案。该对准方法考虑并利用了速率偏频激光陀螺导航系统的结构特点，由加速度计的输出得到俯仰角和横滚角，基于四元数的理论思想得到航向角。根据实际情况仿真分析了几种主要的误差因素对对准精度的影响，并给出了相应的解决方法，仿真结果证实了该方法的可行性。

Initial Alignment of Navigation System Based on Rate-Biased RLG

Initial alignment of navigation system based on rate-biased RLG on stationary base is analyzed in this paper. A feasible method of initial alignment is presented, in which the structure and the characteristic of the navigation system are considered and utilized. Pitch angle and roll angle are derived from the output of accelerometer, and course angle is obtained on the basis of theory of quatemion. Furthermore, several main error factors on initial alignment precision are analyzed, and the corresponding solutions are provided. The simulation results show that the method is feasible.