Inertial navigation systems have the following advantages:
1. Because it is an autonomous system that does not rely on any external information and does not radiate energy to the outside, it has good concealment and is not affected by external electromagnetic interference;
2. It can work in the air, the surface of the earth and even underwater all the time and all the time;
3. It can provide position, speed, heading and attitude angle data, and the generated navigation information has good continuity and low noise;
4. High data update rate, short-term accuracy and stability.