Showing 221 - 240 results of 401 for search '"unmanned aerial vehicle"', query time: 0.07s Refine Results
  1. 221

    A Space Vector–Based Long-Range AOA Localization Algorithm With Reference Points by Chenxin Wang, Wenxing Fu, Tong Zhang, Guangyu Yang

    Published 2024-01-01
    “…In long-range missions based on angle-of-arrival positioning, the angle measurement error of unmanned aerial vehicles is a major source of error. Therefore, reducing the unmanned aerial vehicle angle measurement error is crucial to achieve accurate remote positioning. …”
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    Article
  2. 222

    An Innovative Aircraft Skin Damage Assessment Using You Only Look Once-Version9: A Real-Time Material Evaluation System for Remote Inspection by Kuo-Chien Liao, Jirayu Lau, Muhamad Hidayat

    Published 2025-01-01
    “…The system utilizes the real-time object detection capabilities of the you only look once-version 9 (YOLO v9) algorithm, combined with imagery captured from an unmanned aerial vehicle (UAV)-based aerial platform. This results in a system capable of detecting defects such as cracks and dents on the aircraft’s surface, even in areas that are difficult to reach, such as the upper surfaces of the wings or the higher parts of the fuselage. …”
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  3. 223

    Autonomous Real-Time Smoothness Control for Reliable DDQN-Based UAV Navigation Using Cellular Networks by Ghada Afifi, Yasser Gadallah

    Published 2025-01-01
    “…Reliable Unmanned Aerial Vehicle (UAV) navigation in urban environments is a crucial prerequisite for major civilian and military applications. …”
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    Article
  4. 224

    A Regional Landslide Stability Analysis Method under the Combined Impact of Rainfall and Vegetation Roots in South China by Qinghua Gong, Jun Wang, Ping Zhou, Min Guo

    Published 2021-01-01
    “…A typical mountainous watershed in the Nanling National Nature Reserve of South China was chosen as the study area. First, the unmanned aerial vehicle (UAV) method was used to obtain surface element information including topography, vegetation, and landslides. …”
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    Article
  5. 225

    Quadrotor Trajectory Planning with Tetrahedron Partitions and B-Splines in Unknown and Dynamic Environments by Jiayu Men, Jesús Requena Carrión

    Published 2024-12-01
    “…Trajectory planning is a key task in unmanned aerial vehicle navigation systems. Although trajectory planning in the presence of obstacles is a well-understood problem, unknown and dynamic environments still present significant challenges. …”
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    Article
  6. 226

    A Dynamic Motion Tracking Control Approach for a Quadrotor Aerial Mechanical System by Hugo Yañez-Badillo, Francisco Beltran-Carbajal, Ruben Tapia-Olvera, Antonio Valderrabano-Gonzalez, Antonio Favela-Contreras, Julio C. Rosas-Caro

    Published 2020-01-01
    “…Measurements of position output signals for efficient and robust tracking of motion profiles specified for the unmanned aerial vehicle are only required. Thus, differentiation of signals and real-time estimation of disturbances affecting the multi-input multioutput, underactuated nonlinear dynamic system are unnecessary. …”
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  7. 227

    A Bistatic Imaging Method for GEOSAR in the Strip Mode and UAVSAR in the Steering Beam Mode by W. Zhuo-qun, L. Ya-jun, S. Sheng, L. Shuang-shuang, X. Jin-guo, W. Jun-qiang, Z. Jian-hua

    Published 2018-01-01
    “…The bistatic configuration with a geosynchronous orbital SAR (GEOSAR) transmitter and unmanned aerial vehicle SAR (UAVSAR) receiver can continuously image in any dangerous and interesting district. …”
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    Article
  8. 228

    A spherical vector-based adaptive evolutionary particle swarm optimization for UAV path planning under threat conditions by Yanfei Liu, Hao Zhang, Hao Zheng, Qi Li, Qi Tian

    Published 2025-01-01
    “…Abstract Unmanned aerial vehicle (UAV) path planning is a constrained multi-objective optimization problem. …”
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    Article
  9. 229

    Joint Optimization Design of UAV-Active RIS System Based on a Quadratic Transformation by Yi Peng, Haolin Li, Qingqing Yang

    Published 2025-01-01
    “…Aiming at the problem of maximizing the average achievable rate (AAR) of users in the scenario of unmanned aerial vehicle (UAV) carrying an active reconfigurable intelligent surface (RIS) in the downlink communication system, a method based on quadratic transformation combined with semidefinite relaxation (SDR) and successive convex approximation (SCA) is proposed. …”
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    Article
  10. 230

    Obstacle Avoidance Path Planning for UAV Based on Improved RRT Algorithm by Fan Yang, Xi Fang, Fei Gao, Xianjin Zhou, Hao Li, Hongbin Jin, Yu Song

    Published 2022-01-01
    “…Obstacle avoidance path planning capability, as one of the key capabilities of UAV (Unmanned Aerial Vehicle) to achieve safe autonomous flight, has always been a hot research topic in UAV research filed. …”
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  11. 231

    Flight-Test Evaluation of Kinematic Precise Point Positioning of Small UAVs by Jason N. Gross, Ryan M. Watson, Stéphane D’Urso, Yu Gu

    Published 2016-01-01
    “…An experimental analysis of Global Positioning System (GPS) flight data collected onboard a Small Unmanned Aerial Vehicle (SUAV) is conducted in order to demonstrate that postprocessed kinematic Precise Point Positioning (PPP) solutions with precisions approximately 6 cm 3D Residual Sum of Squares (RSOS) can be obtained on SUAVs that have short duration flights with limited observational periods (i.e., only ~≤5 minutes of data). …”
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  12. 232

    Numerical investigation of infrared imaging of multi-UAV formation under cloud and rain weather conditions by Wenqiang Gao, Teng Zhang, Enling Tang, Enling Tang, Pengjun Zhang, Qinglin Niu

    Published 2025-01-01
    “…Infrared imaging is essential for detecting multiple unmanned aerial vehicle (UAV) targets detection to capture flight altitude and behavior. …”
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    Article
  13. 233

    Two-Layer Optimization Algorithm for Multi-UAV Conflict Resolution considering Individual Fairness by Xusheng Gan, Honghong Zhang, Yarong Wu, Jingjuan Sun, Guhao Zhao, Fugen Lin

    Published 2021-01-01
    “…In order to solve the unfair individual payment costs problem in the low-altitude unmanned aerial vehicle (UAV) conflict resolution process, a multi-UAV conflict resolution algorithm based on the cooperative game concept “coalition complaint value” is proposed. …”
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  14. 234

    Comprehensive dataset from high resolution UAV land cover mapping of diverse natural environments in Serbia by Bojana Ivošević, Nina Pajević, Sanja Brdar, Rana Waqar, Maryam Khan, João Valente

    Published 2025-01-01
    “…The scarcity of freely available HR datasets underscores the importance of multi-spectral HR aerial images. We used unmanned aerial vehicle (UAV) to capture images for a centimeter-level orthomosaics, facilitating advanced remote sensing and spatial analysis. …”
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  15. 235

    RTAPM: A Robust Top-View Absolute Positioning Method with Visual–Inertial Assisted Joint Optimization by Pengfei Tong, Xuerong Yang, Xuanzhi Peng, Longfei Wang

    Published 2025-01-01
    “…Currently, there is no unmanned aerial vehicle (UAV) positioning method that is capable of substituting or temporarily replacing GNSS positioning. …”
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    Article
  16. 236

    Low-Resolution Quantized Precoding for Multiple-Input Multiple-Output Dual-Functional Radar–Communication Systems Used for Target Sensing by Xiang Feng, Zhongqing Zhao, Jiongshi Wang, Jian Wang, Zhanfeng Zhao, Zhiquan Zhou

    Published 2025-01-01
    “…Dual-functional radar–communication systems are extensively employed for the detection and control of unmanned aerial vehicle groups and play crucial roles in scenario monitoring. …”
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    Article
  17. 237

    L1 Adaptive Fault-Tolerant Attitude Tracking Control of UAV Systems Subject to Faults and Input Saturation by Yan Zhou, Huiying Liu, Huijuan Guo, Yongjian Chen

    Published 2024-01-01
    “…This paper investigates an adaptive fault-tolerant control scheme for an unmanned aerial vehicle (UAV) attitude control system in the presence of multiple faults, input saturation, and external disturbances. …”
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  18. 238

    Routing Protocol for Intelligent Unmanned Cluster Network Based on Node Energy Consumption and Mobility Optimization by He Dong, Baoguo Yu, Wanqing Wu

    Published 2025-01-01
    “…Nevertheless, due to factors such as multipath propagation, electromagnetic interference, and frequency band congestion in high dynamic scenarios, unmanned cluster networks experience frequent topology changes and severe spectrum limitations, which hinder the provision of connected, elastic and autonomous network support for data interaction among unmanned aerial vehicle (UAV) nodes. To address the conflict between the demand for reliable data transmission and the limited network resources, this paper proposes an AODV routing protocol based on node energy consumption and mobility optimization (AODV-EM) from the perspective of network routing protocols. …”
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  19. 239

    An Over-Actuated Hexacopter Tilt-Rotor UAV Prototype for Agriculture of Precision: Modeling and Control by Gabriel Oliveira Pimentel, Murillo Ferreira dos Santos, José Lima, Paolo Mercorelli, Fernanda Mara Fernandes

    Published 2025-01-01
    “…The enhanced maneuverability allows for precise navigation in complex vineyard environments, enabling the unmanned aerial vehicle (UAV) to perform tasks such as aerial imaging and crop health monitoring. …”
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  20. 240

    Large-Area Saline-Alkali-Tolerant Rice Growth Environment Monitoring System Based on LoRa+UAV by Chunmei Mo, Zaimi Xie, Ji Wang

    Published 2022-01-01
    “…A wireless sensor network (WSN) monitoring system for saline-alkali-tolerant rice based on long-range + unmanned aerial vehicle (LoRa + UAV) has been proposed in this paper to meet the requirements of difficult deployment, low scalability, and poor network reliability of traditional farmland environmental monitoring systems. …”
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    Article