捷联式惯导系统静基座快速初始对准方法的研究

Research on a Fast Initial Alignment Method for the Strapdown Inertial Navigation System on Stationary Base

初始对准精度直接关系到惯导系统的工作精度,其时间是惯导系统的重要战术技术指标,因此,初始对准是惯导系统最重要的关键技术之一。本文提出并设计了把扩张状态观测器用于捷联惯导系统静基座下的初始对准。结果表明,对准过程时间大大缩短,具有精度高、算法简单等特点。是一种应用在实际惯导系统中的理想初始对准方案。

In this paper, focusing on the strapdown inertial navigation system, a fast initial alignment method is proposed by Extended States Observers (ESO). The method makes initial aligning more quickly than before and possesses such characters as high accurate and arithmetic simple, etc. The simulation results demonstrate that it is an effective initial alignment scheme in the inertial navigation system.