搜索结果: 1-10 共查到“航空、航天科学技术 UAV”相关记录10条 . 查询时间(0.134 秒)
SUBAQUATIC DIGITAL ELEVATION MODELS FROM UAV-IMAGERY
UAV, DEM underwater multi-media bundle-adjustment
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2018/6/4
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...
3D MODEL GENERATION USING OBLIQUE IMAGES ACQUIRED BY UAV
UAV oblique images flight plan SfM cultural heritage open source
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2017/8/10
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 ...
Guidance, Navigation, and Separation Assurance for Local-Area UAV Networks: Putting the Pieces Together
Guidance Navigation Separation Assurance Local-Area UAV Networks
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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...
风场干扰下基于一致性卡尔曼滤波的UAV编队控制算法
风场干扰 一致性卡尔曼滤波 航迹修正 UAV 编队
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2016/9/26
针对风场干扰下多无人机(UAV)编队的控制问题，提出一种基于一致性卡尔曼滤波的多无人机编队控制 算法。根据一致性卡尔曼滤波算法，测量每架无人机的风场干扰误差，预测控制编队中各机的相对位置；设置编队 的中心关键点，并利用总卡尔曼滤波器调整其位置， 由此实现了一致性卡尔曼滤波算法与航迹修正相结合解决风场 干扰下多无人机编队的控制问题；并将该算法应用到轨迹跟踪问题，从而实现编队对复杂航迹的实时跟踪。仿真...
APPLICABILITY ANALYSIS OF ULTRA-LIGHT UAV FOR FLOODING SITE SURVEY IN SOUTH KOREA
UAV (Unmanned Aerial Vehicle) Flood Mapping Ground survey Cadastral
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2014/4/24
Recently, UAV (Unmanned Aerial Vehicle) is used in a variety of fields such as the military service, fire prevention, traffic supervision, mapping, and etc. The increased demand for UAVs is typically ...
EXPERIMENTAL RESEARCH ON ACCURACY OF AEROTRIANGULATION FOR UAV IMAGERY
UAV imagery Aerotriangulation Geolord-AT PixelGrid Photo-control Points Distribution
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2014/4/24
In this paper, the experimental research utilized UAV imageries of two areas, assessed the accuracy of aerial triangulation on the
basis of different photo-control points distributions using two kin...
研究了通信和测量受限的异构多无人机(UAV)网络化分布式协同目标观测与跟踪问题。该分布式UAV系统采用长机-僚机异构型网络结构,以实现在电子静默和战术隐身条件下扩大探测和打击纵深。提出改进的一致性信息滤波(ICF)算法,实现通信和测量范围内各UAV节点的分布式信息融合。由于一致性算法的收敛性与网络拓扑结构的连通性密切相关,引入通信连接鲁棒性作为最优控制的指标函数之一,以解决通信和测量受限条件下的U...
跑道检测与跟踪是UAV视觉导航研究的重点内容。针对UAV着陆过程中跑道变化情况，提出一种新的方法，利用单目视觉信息，基于距离跑道的远近不同采用不同的策略实现跑道检测与跟踪，帮助UAV自主降落在安全区域。当距离较远时，利用地平线检测和模板匹配的方法对跑道进行定位；结合模板更新策略实现跑道跟踪；当距离较近时，在融合远距离跑道方位信息的基础上利用改进型Canny算子和Hough变换对跑道边缘进行更精确的...
针对多无人机(UAV)协同区域搜索问题展开研究。提出了一种基于分布式模型预测控制(DMPC)的多UAV分布式优化搜索方法。首先基于传统的搜索图模型，建立了多UAV协同搜索的问题描述和状态空间模型，然后在DMPC框架下，将集中式多UAV在线优化决策问题转化为各架UAV的小规模分布式优化问题，采用基于纳什最优和粒子群优化(PSO)相结合的算法实现对每个子系统优化问题的迭代求解。仿真结果表明：DMPC方...
洛·马公司开发新型垂直起落UAV验证机
洛·马公司 垂直起落 UAV验证机
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2006/8/31
美国《航宇日报》2006年8月18日报道：洛克希德•马丁公司正在研制一种新型垂直起落（VTOL）无人机（UAV）验证机。该机将在2007年开始进行风洞试验，洛•马公司打算用它来满足美海军陆战队对于所谓“垂直起落无人机”（VTOL Unmanned Aerial Vehicle，VUAV）的需求。