Magnetometer-Based Attitude Determination for Spinning Flight Vehicles

Aiming at the limitation in measuring high-speed spinning flight vehicles attitude with inertia device, a method to determine flight vehicles attitude based on magnetometer is provided. According to the tri-axis magnetic projection, the calculation model of attitude is deduced and the corresponding geomagnetic attitude determination algorithm is established. The results of static experiment and high dynamic flight simulation show that the magnetometer-based attitude determination algorithm can accurately calculate the vehicle attitude with real-time and long-time high precision navigation. It proves that algorithm is feasible and effective. It provides an important theoretical guidance for attitude determination and practical value in engineering.