According to statistics, 50 % of all collision accidents are taken place infog. Therefore, how to improve the navigation safety infog 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。
2
Above all, according to the FOG and quartz accelerometer adopted innavigation 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。
3
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.