Simulation of Multi-sensor Integrated Navigation System of UAV

The orientation error of Inertial Navigation System will be cumulated and sometimes even spread in the course of time because of the error from gyroscope and accelerometer. One effective way for resolving this problem is using the Integrated Navigation System. With the improvement of the performance of other navigation systems,the integrated navigation system which combines the inertial system as main part with other systems as assistant part is becoming a research hotspot. The paper gives a method for building a multi-sensor integrated navigation system formed by inertial navigation system,GPS and magnet sensor,and does some simulation for the integrated navigation system. The result shows that the integrated navigation system can meet the requirement of UAV's navigation and has fine stability.