Results 31 to 40 of about 12,423,762 (176)

Air Channel Planning Based on Improved Deep Q-Learning and Artificial Potential Fields

Aerospace, 2023
With the rapid advancement of unmanned aerial vehicle (UAV) technology, the widespread utilization of UAVs poses significant challenges to urban low-altitude safety and airspace management.
Jie Li, Di Shen, Fuping Yu, Renmeng Zhang   +3 more
doaj   +1 more source

Optimal Sensor Deployment and Velocity Configuration With Hybrid TDOA and FDOA Measurements

IEEE Access, 2019
Source localization based on the hybrid time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) measurements from distributed sensors is an essential problem in wireless sensor networks (WSNs).
Weijia Wang, Peng Bai, Yubing Wang, Xiaolong Liang, Jiaqiang Zhang   +4 more
doaj   +1 more source

Time cooperative path planning for unmanned marine system

Zhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to solve the problem of time cooperative path planning for unmanned marine system (UMS) in complex environments, we propose a cooperative path planning method based on a differential evolution (DE) algorithm.
Fengchuan YIN, Xiaolong LIANG, Hao TAO, Yueqi HOU, Duo QI, Xianning WU   +5 more
doaj   +1 more source

Clustering Method of Large-Scale Battlefield Airspace Based on Multi A * in Airspace Grid System

Applied Sciences, 2022
Aiming at the problem of the wide range and great difficulty in the future of battlefield airspace control, based on the unique advantages of an airspace grid system in an airspace grid representation and time–space binary computing, this paper designs a
Ming Cai, Lujun Wan, Zhiqiang Jiao, Maolong Lv, Zhizhou Gao, Duo Qi   +5 more
doaj   +1 more source

Solution and Optimization of Aircraft Swarm Cooperating Anti-Stealth Formation Configuration

IEEE Access, 2018
There are many problems in present anti-stealth detection technologies, such as small detection range and excessive detection blind zone. Besides, the stealth target is difficult to be detected and tracked with current technology. To solve these problems,
Liping Hu, Peng Bai, Xiaolong Liang, Jiaqiang Zhang, Weijia Wang   +4 more
doaj   +1 more source

Exploring the Use of Invalid Action Masking in Reinforcement Learning: A Comparative Study of On-Policy and Off-Policy Algorithms in Real-Time Strategy Games

Applied Sciences, 2023
Invalid action masking is a practical technique in deep reinforcement learning to prevent agents from taking invalid actions. Existing approaches rely on action masking during policy training and utilization.
Yueqi Hou, Xiaolong Liang, Jiaqiang Zhang, Qisong Yang, Aiwu Yang, Ning Wang   +5 more
doaj   +1 more source

Air traffic control officer recruitment and training [PDF]

, 2023
This chapter outlines the recruitment, training and licencing requirements of the air traffic control sector as prescribed by ICAO Annex 1, Annex 11 and ICAO Doc 4444 PANS-ATM, ICAO Doc 9868 PANS-Training.
McIlroy, Gary, Efthymiou, Marina
core   +1 more source

Research on UAV Conflict Detection and Resolution Based on Tensor Operation and Improved Differential Evolution Algorithm

Aerospace
With the widespread application of unmanned aerial vehicles (UAVs) in civilian and military fields, how to effectively detect and resolve conflicts of large-volume and high-density UAV flights in local airspace has become an important issue.
Zhichong Zhou, Guhao Zhao, Yiru Jiang, Yarong Wu, Jiale Yang, Lingzhong Meng   +5 more
doaj   +1 more source

Air Traffic Complexity Analysis in Multi-Airport Terminal Areas Based on Route Segment–Flight State Interdependent Network

Aerospace
An analysis of air traffic complexity in multi-airport terminal areas can assist air traffic controllers in accurately assessing the air traffic situation and collaboratively managing air traffic flows, thereby enhancing the utilization of airspace ...
Chuanlong Zhang, Xiangxi Wen, Minggong Wu, Libiao Zhang, Hanchen Xie, Lingzhong Meng, Jiale Yang   +6 more
doaj   +1 more source

FPGA graphical design for primary radar signal preprocessing

Dianzi Jishu Yingyong
To address the low development efficiency of FPGA signal processing in primary radar systems, a graphical design method based on System Generator is proposed.
Chen Long, Liao Yufu, Feng Tao, Feng Dongyang   +3 more
doaj   +1 more source