Information from navigation sensors is conveyed to navigational calculator and syncretized by Kalman filter, the optimal navigational information can be gained.

• 导航传感器(加速度计、陀螺和GPS接收机)的各部分输出的信息送到导航计算机，应用卡尔曼滤波算法进行信息融合，得到最优导航信息。