According to statistics, 50 % of all collision accidents are taken place in fog. Therefore, how to improve the navigation safety in fog has attracted the common concerning of navigation circle.
据统计船舶碰撞事故中50%以上是在雾航情况下发生的，因此，如何提高雾航安全是航海界普遍关心的问题。
Above all, according to the FOG and quartz accelerometer adopted in navigation system, the static error models of IMU (Inertial Measurement Units) are built up.
首先，针对实际系统中所用的光纤陀螺、石英挠性加速度计组件，分别建立了相应的静态误差模型。
According to this model and the Kalman filter arithmetic, the FOG random error was filtered in real time in the process of initial alignment and navigation of FOG inertial navigation system.
根据该模型，采用卡尔曼滤波算法，实现了光纤陀螺惯导系统在对准与导航过程中光纤陀螺随机误差的实时滤波。
They were also used in harbor channels for navigation at night and in fog.
港口和海峡也会用于夜晚和雾天的导航。
They were also used in harbor channels for navigation at night and in fog.
港口和海峡也会用于夜晚和雾天的导航。
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