Abstract
Since the 21st century, the trajectory planning of hypersonic vehicles has become a major focus and difficulty of research due to their ability to strike targets rapidly. In this paper, a mathematical model of the re-entry corridor under the altitude-velocity profile is established, and the initial altitude range is obtained by using the initial descent method. The proposed equilibrium gliding condition is used to suppress the periodic altitude bounce within the remaining range while introducing the angle feedback. It is also studied in comparison with two cases. In the first case, a comparative study is performed with the method without feedback, and the second case is the application of the algorithm introducing altitude feedback in the predictor-corrector guidance algorithm to this trajectory planning. The experimental results show that this method can make the trajectory descend according to the altitude-velocity trajectory curve obtained from the preset equilibrium gliding angle, so as to obtain the three-degree-of-freedom re-entry trajectory and complete the online generation and tracking of the three-degree-of-freedom trajectory.
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This work was supported in part by National Natural Science Foundation of China under Grant 91216304.
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Hu, C., Wang, C., Wu, Y. (2023). Online Generation of Smooth Gliding Re-entry Trajectory. In: Yan, L., Duan, H., Deng, Y. (eds) Advances in Guidance, Navigation and Control. ICGNC 2022. Lecture Notes in Electrical Engineering, vol 845. Springer, Singapore. https://doi.org/10.1007/978-981-19-6613-2_51
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DOI: https://doi.org/10.1007/978-981-19-6613-2_51
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