Trajectory Tracking for Hypersonic Glide Vehicles Based on Improved Sine-AIMM

To obtain a better performance of trajectory tracking for hypersonic glide vehicles (HGVs), this paper focuses on enhancing the accuracy of tracking model, an effective method with a modified tracking model is proposed. Firstly, according to the skip glide trajectory of HTV-2, a simplified trajectory model is established to describe the periodical characteristic of the trajectory. Secondly, a modified tracking model based on Sine model for HGVs is designed. Thirdly, for better model matching performance, an adaptive method is proposed to update the probability transition matrix of IMM. Finally, numerical simulation results are given to demonstrate that: interacting multiple model (IMM) algorithm based on the proposed Sine model is more accurate than that of Singer model, moreover, the adaptive IMM (AIMM) algorithm improves both the precision and the convergence rate of tracking for HGV.