GPS/罗兰C/SINS/AHRS组合导航系统及试验

组合导航系统已成为现代船用导航系统的重要配套设备,并已向着多组合导航系统方向发展。针对导航精度及可靠性,设计了GPS/罗兰C/SINS/AHRS组合导航系统,该组合导航采用了自适应联邦卡尔曼滤波(Kalman)的方法,通过闭环形式校正SINS,并用姿态航向参考系统(AHRS)代替捷联惯性导航系统(SINS)输出的航向角以保证航向角的收敛,同时对罗兰C的测量值进行坐标变换以消除由于坐标系不同而带来的常值误差。实际的静态与动态试验结果表明,该组合导航系统是可行的,能满足任务要求,并且易于工程实现。

Integrated Navigation System and Experiment of GPS/LoranC/SIINS/AHRS

The integrated navigation system has become an important accessorial equipment in modem ship's navigation system, and is developing in the direction of multi-integrated navigation system. In order to ensure the precision and reliability, this paper designs the GPS/Loran C/SINS/AHRS integrated system. In this integrated system, the self-adaptive federated Kalman filter is introduced to revise strap-down inertial navigation system (SINS); the heading angle attitude and heading reference system (AHRS) is used to ensure the convergence of heading angle; and the coordination transformation for Loran C is applied to eliminate the constant error of Loran C. The results of practical static and dynamic experiment show that this system is feasible and can meets the need of mission and engineer realization.