| 1 | Autonomous maneuver strategy of swarm air combat based on DDPG显示文摘Unmanned aerial vehicles(UAVs)have been found significantly important in the air combats,where intelligent and swarms of UAVs will be able to tackle with the tasks of high complexity and dynamics.The key to empower the UAVs with such capability is the autonomous maneuver decision making.In this paper,an autonomous maneuver strategy of UAV swarms in beyond visual range air combat based on reinforcement learning is proposed.First,based on the process of air combat and the constraints of the swarm,the motion model of UAV and the multi-to-one air combat model are established.Second,a two-stage maneuver strategy based on air combat principles is designed which include inter-vehicle collaboration and target-vehicle confrontation.Then,a swarm air combat algorithm based on deep deterministic policy gradient strategy(DDPG)is proposed for online strategy training.Finally,the effectiveness of the proposed algorithm is validated by multi-scene simulations.The results show that the algorithm is suitable for UAV swarms of different scales. | Luhe Wang Jinwen Hu Zhao Xu Chunhui Zhao | 2021 | Autonomous Intelligent Systems2021，1，1： | 3 |
| 2 | Flexible micro-LED display and its application in Gbps multi-channel visible light communication显示文摘A flexible full-color micro-LED display with high mechanical robustness was fabricated by printing quantum dots(QDs)on a blue micro-LED array using standard photolithography.The red and green colors yielded from QDs exhibit a better color gamut than conventional color filters.The light conversion efficiency was enhanced by adding TiO2 nanoparticles to the QD-photoresist composite.This full-color micro-LED display was successfully mounted on various unusual substrates such as curved glass,fabrics,and human skin,enabling diverse optoelectronic applications.In addition,wireless multi-channel visible light communication(VLC)based on the wavelength-division-multiplexing orthogonal-frequency-division-multiplexing(WDM-OFDM)technique was demonstrated using a QD-based color micro-LED panel.A high data transmission rate of 1.9 Gbps was successfully obtained owing to the high electrical-optical modulation bandwidth of the QD-based micro-LED panel. | Luhing Hu Jaeyong Choi Sumin Hwangbo Do-Hoon Kwon Bongkyun Jang Seunghyeon Ji Jae-Hyun Kim Sang-Kook Han Jong-Hyun Ahn | 2022 | npj Flexible Electronics2022，6，1： | 0 |
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