Trajectory Prediction Method of High-Speed Aircraft Based on Acceleration Fitting

The research objects of traditional trajectory prediction methods are mostly ballistic missiles. The active maneuverability of ballistic missiles is weak, so their trajectories have strong regularity and relatively fixed trajectories. Compared with other types of aircraft, high-speed aircraft has higher maneuverability, its flight trajectory is not fixed, and the change law of attack angle and roll angle during flight is very different. In this paper, the observation data is used to fit the acceleration change law of the aircraft, and then the integral iteration method is used to predict its subsequent flight trajectory. Most of the current trajectory prediction research focuses on the improvement of the filtering algorithm. This paper improves the polynomial order of the fitting target acceleration to find the change law of the target trajectory acceleration with time in the short-term trajectory prediction. The simulation results show that in the short term, the acceleration of the target is close to a constant value.