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基于改进PSO的多UAV协同任务分配研究
多无人飞行器 粒子群算法 协同任务分配
2019/4/10
基于任务分配收益和任务分配代价，考虑UAV总飞行时间代价、最大任务时间、负载均衡值等因素，建立多UAV协同任务分配模型；设计了双层粒子群编码方法，将任务类型匹配信息作为启发信息，同时提出分组任务调整、飞行时间调整、任务交叉消解、时序先后调整等冲突消解处理策略，改进粒子群算法；最后进行了仿真实验。仿真结果表明，基于启发信息和冲突消解策略的改进PSO算法，提高了算法的收敛性和全局搜索能力，提升了任务分...
提出了高寒山地“车辆+无人机”联运的配送模式，构建了高寒山地“车辆+无人机”路径规划模型，利用CTDEA算法对模型进行了求解；研究表明，相比于现行的“车辆+单兵人力搬运”配送模式，“车辆+无人机”配送模式大幅能够有效提高高寒山地维修器材的配送效率和质量，减少有生力量非战斗减损。
UNMANNED AERIAL VEHICLE (UAV) SURVEY-ASSISTED 3D MANGROVE TREE MODELING
Mangroves 3D Visualization 3D Modeling Unmanned Aerial Vehicle Assistive Modeling
2018/10/26
3D visualization is a tool that supports geospatial analysis through the application of scientific information. It enhances the quality of standard photography and can be used in many applications. Th...
ON A FUNDAMENTAL EVALUATION OF A UAV EQUIPPED WITH A MULTICHANNEL LASER SCANNER
UAV Multichannel laser scanner Accuracy evaluation Laser-acquired point cloud Photogrammetry
2018/3/30
Unmanned aerial vehicles (UAVs), which have been widely used in various fields such as archaeology, agriculture, mining, and construction, can acquire high-resolution images at the millimetre scale. I...
SUBAQUATIC DIGITAL ELEVATION MODELS FROM UAV-IMAGERY
UAV, DEM underwater multi-media bundle-adjustment
2018/3/30
The paper presents an approach for the generation of digital elevation models (DEMs) of underwater areas from aerial images. Standard software-products do not provide the possibility to measure correc...
INCORRECT MATCH DETECTION METHOD FOR ARCTIC SEA-ICE RECONSTRUCTION USING UAV IMAGES
Unmanned Aerial Vehicle Digital Surface Model Image Matching Arctic Sea-Ice
2018/3/30
Shapes and surface roughness, which are considered as key indicators in understanding Arctic sea-ice, can be measured from the digital surface model (DSM) of the target area. Unmanned aerial vehicle (...
UAV-BASED DETECTION OF UNKNOWN RADIOACTIVE BIOMASS DEPOSITS IN CHERNOBYL’S EXCLUSION ZONE
UAV LiDAR gamma spectrometry 3D vegetation mapping biomass machine learning
2018/3/30
Shortly after the explosion of the Chernobyl nuclear power plant (ChNPP) in 1986, radioactive fall-out and contaminated trees (socalled Red Forest) were buried in the Chernobyl Exclusion Zone (ChEZ). ...
3D MODEL GENERATION USING OBLIQUE IMAGES ACQUIRED BY UAV
UAV oblique images flight plan SfM cultural heritage open source
2017/5/10
In recent years, many studies revealed the advantages of using airborne oblique images for obtaining improved 3D city models (including façades and building footprints). Here the acquisition and ...
EXTERIOR ORIENTATION OF HYPERSPECTRAL FRAME IMAGES COLLECTED WITH UAV FOR FOREST APPLICATIONS
Forest Hyperspectral Image Orientation Sparse Control UAV
2016/3/25
This paper describes a preliminary study on the image orientation acquired by a hyperspectral frame camera for applications in small tropical forest areas with dense vegetation. Since access to the in...
Guidance, Navigation, and Separation Assurance for Local-Area UAV Networks: Putting the Pieces Together
Guidance Navigation Separation Assurance Local-Area UAV Networks
2015/6/24
This paper examines the guidance methodology needed to implement networks of autonomously-flown unmanned aerial vehicles (UAVs) controlled by centralized ground stations (GSs). The intended operations...
UAV Data Processing for Large Scale Topographical Mapping
Topographic mapping map accuracy UAV
2014/6/30
Large scale topographical mapping in the third world countries is really a prominent challenge in geospatial industries nowadays. On one side the demand is significantly increasing while on the other ...
Lidar-equipped uav for building information modelling
UAV Lidar GPS point clouds buildings BIM
2014/6/30
The trend to minimize electronic devices in the last decades accounts for Unmanned Airborne Vehicles (UAVs) as well as for sensor technologies and imaging devices, resulting in a strong revolution in ...
高分辨率UAV SAR的三维运动误差分离与补偿
多普勒调频率估计 包络校正 相位补偿
2013/11/13
在基于SAR回波的数据处理中，多普勒调频率具有很高的估计精度且对场景的依赖性很小，可以更广泛地用于自聚焦处理。基于多普勒调频率参数估计, 针对回波包络及相位分别提出了误差提取模型，并通过包络误差校正和相位误差补偿两个步骤实现了高精度的运动补偿处理。实测数据表明，本文方法可以在低精度导航信息情况下获取高分辨率雷达图像。
高分辨率UAV SAR的三维运动误差分离与补偿
多普勒调频率估计 包络校正 相位补偿
2013/11/13
在基于SAR回波的数据处理中，多普勒调频率具有很高的估计精度且对场景的依赖性很小，可以更广泛地用于自聚焦处理。基于多普勒调频率参数估计, 针对回波包络及相位分别提出了误差提取模型，并通过包络误差校正和相位误差补偿两个步骤实现了高精度的运动补偿处理。实测数据表明，本文方法可以在低精度导航信息情况下获取高分辨率雷达图像。