Abstract
The collaborative mission capability of multi-UAV has received more and more attention in recent years as the research on multi-UAV theories and applications has intensified. The artificial intelligence technology integrated into the multi-UAV collaborative decision-making system can effectively improve the collaborative mission capability of multi-UAV. We propose a multi-agent reinforcement learning algorithm for multi-UAV collaborative decision-making. Our approach is based on the actor-critic algorithm, where each UAV is treated as an actor that collects data decentralized in the environment. A centralized critic provides evaluation information for each training step during the centralized training of these actors. We introduce a gate recurrent unit in the actor to enable the UAV to make reasonable decisions concerning historical decision information. Moreover, we use an attention mechanism to design the centralized critic, which can achieve better learning in a complex environment. Finally, the algorithm is trained and experimented in a multi-UAV air combat scenario developed in the collaborative decision-making environment. The experimental results show that our approach can learn collaborative decision-making strategies with excellent performance, while convergence performance is better compared to other algorithms.
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