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- W4224312828 abstract "Aiming at the attitude control problem of hypersonic reentry vehicles (HRVs), a deep reinforcement learning (DRL) based anti-disturbance control method is proposed. First, a compound control framework consisting of a DRL-based auxiliary controller and a fixed-time anti-disturbance controller is proposed to improve the control performance under the premise of ensuring stability. Then, a novel value function approximation mechanism, named experience-based value expansion (EVE), is proposed to modify the value function update equation based on a two-dimensional replay buffer, which solves the DRL convergence problem brought by the HRV’s strong nonlinearities, tight coupling, and big flight envelope. Furthermore, a result-oriented encoder (ROE) is proposed to solve the DRL generalization problem brought by the HRV’s high uncertainties and unavailable real training environment. A bottleneck shape neural network structure is used for the DRL’s network structure to extract high-dimensional features and prevent overfitting to the training environment. Finally, abundant numerical comparative simulations demonstrate the effectiveness of the proposed efficient DRL algorithms and the DRL-based attitude controller." @default.
- W4224312828 created "2022-04-26" @default.
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- W4224312828 date "2022-07-01" @default.
- W4224312828 modified "2023-10-02" @default.
- W4224312828 title "Attitude control for hypersonic reentry vehicles: An efficient deep reinforcement learning method" @default.
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- W4224312828 doi "https://doi.org/10.1016/j.asoc.2022.108865" @default.
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