Trajectory Prediction of Hypersonic Vehicles based on Control Quantity Prediction

Abstract

Hypersonic vehicles have strong maneuverability, and the method of trajectory prediction is different from traditional aircrafts. The current research on hypersonic vehicle trajectory prediction is usually aimed at the full trajectory prediction, and there are few methods for hypersonic vehicle trajectory prediction in specific scenes. In this paper, aiming at the scene that hypersonic vehicle be not observed in the blind area of land-based radar, a trajectory prediction method of hypersonic vehicle is proposed, which is realized by predicting the control quantity. According to the constraint characteristics, aerodynamic characteristics and motion characteristics, the characteristic function is established. And on the basis of the priori information from the observed data, the conditional random field model is established to predict the control quantity. The trajectory in the blind area is calculated according to the predicted control quantity. Finally, the effectiveness and feasibility of the trajectory prediction method proposed in this paper are verified by case study.