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• W4225698312 abstract "Considering the high-efficient trajectory planning requirements for hypersonic vehicles, this paper proposes a real-time trajectory optimization method based on a deep neural network. First, the trajectory optimization model of the hypersonic vehicle reentry phase is developed. The pseudo-spectral method is used to perform the trajectory optimization offline, and multiple optimal trajectory data are obtained. In addition, based on the inherent relationship between the state and control variables of a trajectory, a neural network is established to predict the current control outputs. The sample library of optimal trajectory data is used to train the parameters of the deep neural network to obtain an optimal neural network model. Finally, the simulation verification of the hypersonic vehicle reentry phase is performed. The simulation results show that under the condition of the initial value deviation and environmental interference, the proposed deep learning-based method can achieve a fast generation of hypersonic vehicle optimal trajectories, while achieving the advantages of high computational efficiency and reliability. Compared to traditional trajectory optimization algorithms, the proposed method has the generalization capability that satisfies the accuracy requirements and meets the demands of online real-time trajectory optimization." @default.
• W4225698312 created "2022-05-05" @default.
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• W4225698312 date "2022-04-01" @default.
• W4225698312 modified "2023-10-14" @default.
• W4225698312 title "A Real-Time Trajectory Optimization Method for Hypersonic Vehicles Based on a Deep Neural Network" @default.
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• W4225698312 doi "https://doi.org/10.3390/aerospace9040188" @default.
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