Research and simulation on method of calculating full-scale attitude

Based on the problem of limitation in calculating attitude by quaternion way in strapdown INS, a new calculation way which based on transformation of Euler scale in rolling process was proposed. This method utilized the characteristic of transformation of Euler angle, and combined the characteristic of transformation of three-axis attitude in different fields, then made the correct judgment of field's transformation; in the end the attitude's transform calculation under full-scale transform condition could be actualized. Simulation results show that this method can be used in high maneuver flight condition effectively.