基于伪距的末制导炮弹SINS/GPS空中对准研究

Study of Integrated SINS/GPS of the Terminal Guided Projectile In-flight Alignment Based on Paseudorange

文中对基于伪距观测量的末制导炮弹的 SINS/GPS 空中对准技术进行了研究。首先给出了伪距观测量的测量方程、状态方程,最后采用某一弹道数据进行了仿真,分析了组合 Kalman 滤波器在空中对准过程中对失准角的估计精度。

The technique of an integrated SINS/GPS navigation system in in-flight for the terminal guided projectile is studied.The measurement equation based on pseudorange and the equations of state are given.A simulation is done with the trajectory data,the precision of Kalman filter's estimating the initial system alignment errors during flight is also analyzed.