搜索结果: 1-15 共查到“知识库 大地测量定位”相关记录82条 . 查询时间(1.987 秒)
ICF驱动器多光束精确引导与靶精确定位技术研究
ICF驱动器 多光束 精确引导 靶精确定位
2023/8/23
本测量系统是终点弹道命中精度和命中概率测量用的靶场设备，是一种新型的无接触式光电实时测量仪器。具有精度高、实时性强、操作方便等优点。它一方面可取代目前常用的木板靶，对提高工作效益、减轻试验水泵具有现实意义;另一方面为低伸弹道的研究提供了有效手段。是常规靶的重要测试设备。为国内首创、国内领先水平。所采用的线阵CCD摄象机构成的无形靶面的新颖实时测量方案在国际上未见文献报导。〓主要技术性能指标：弹丸尺...
A BUFFER ANALYSIS BASED ON CO-LOCATION ALGORITHM
Buffer analysis Co-location Space Analysis Space mining Co-location analysis
2018/5/17
Buffer analysis is a common tool of spatial analysis, which deals with the problem of proximity in GIS. Buffer analysis researches the relationship between the center object and other objects around a...
AN IMPROVED METHOD OF AGM FOR HIGH PRECISION GEOLOCATION OF SAR IMAGES
SAR image Range-doppler geolocation AGM linear regression
2018/5/17
In order to take full advantage of SAR images, it is necessary to obtain the high precision location of the image. During the geometric correction process of images, to ensure the accuracy of image ge...
COMBINING INDEPENDENT VISUALIZATION AND TRACKING SYSTEMS FOR AUGMENTED REALITY
augmented reality pose estimation tracking calibration visualization
2018/6/4
The basic requirement for the successful deployment of a mobile augmented reality application is a reliable tracking system with high accuracy. Recently, a helmet-based inside-out tracking system whic...
OBJECT LOCALIZATION FOR SUBSEQUENT UAV TRACKING
Tracking objects initialization tracking algorithms unmanned aerial vehicles (UAV)
2018/6/4
The paper is devoted to the problem of semi-automatic initialization of the tracking algorithm, i.e. selecting an object of interest by unmanned aerial vehicles or drones. In this work, we propose an ...
Integrated access to the many heterogeneous and distributed sources of Geo data is an important precondition in order to facilitate the investigation of global processes like temporal development of e...
图像定位技术在现实中有广泛的应用，如导航、路径规划、虚拟现实等.对于用户而言，只需拍摄一张图像即可实现定位.本文提出了一种基于射线摄像机模型的图像定位系统，包含基于射线模型的三维重构算法和基于位姿图优化的图像定位方法.提出的三维重构算法利用射线模型的内在几何性质，能够处理全景和鱼眼等广角摄像机模型，降低采集和重构的代价，提升重构的效果.基于位姿图的定位方法融合了图像与点云匹配的信息和图像间相对位姿...
采用低中频架构设计了一种0.18μm CMOS工艺的GPS/BDS双模可重构接收机射频前端，能在GPS L1模式或BDS B1模式下工作。通过频率自适应电路调整中频滤波器的时间常数,降低其频率不确定度；压控振荡器中加入4位开关电容阵列，以提高频率调谐范围和相位噪声性能；通过硬件复用的方式降低系统功耗。测试结果表明，在1.8 V电源电压下，功耗37.8 mW，电压增益为103 dB，GPS L1和B...
Application of High-Resolution Global DEM in the Oco Mission
Global DEM Continuous Geolocation Of Satellite Soundings Earth Environmental Detection OCO
2015/12/18
The Orbiting Carbon Observatory (OCO), scheduled for launch in December 2008, will make the first space-based measurements of atmospheric CO2 with the precision, spatial and temporal resolution needed...
Challenging Olympic Medals - an Innovative GNSS-Based Multi-Sensor System for Athlete Training and Coaching
Global Positioning System Olympic Competition Inertial Navigation System Sport Application
2015/12/18
In preparing for Olympic competition, every detail is important. Athletes and coaches are not only interested in the physiological information, but also interested in the positional information. Physi...
VisionMap A3 - the New Digital Aerial Mapping System: Basic Principles and Workflow
Digital Camera GPS/INS High Resolution Colour Design Cost Performance
2015/12/18
VisionMap was established in 2004 in order to develop a new automatic mapping system. Today the system is fully operational and the paper will discuss the system design, the operational functions, wor...
Application of SPOT-5 Imagery in Surveying and Mapping of West Regions in China
Satellite Remote Sensing Digital Maps Digital Photogrammetry Absolute Orientation
2015/12/17
During the past 50 years, there are no topographic maps at scaled of 1:50,000 in the West Regions of China. Beside the extremely adverse environmental condition of the regions, the poor surveying and ...
Comparative Analysis of Georeferencing Procedures Using Various Sources of Control Data
Digital Camera Georeferencing Orthoimage Generation Object Reconstruction
2015/12/17
The increasing efficiency and affordability of modern spatial acquisition systems, such as LiDAR, have provided reliable alternative sources of control data for image georeferencing. Indirect georefer...
Automated Near Real Time RADARSAT-2 Image Geo-Processing and Its Application for Sea Ice and Oil Spill Monitoring
RADARSAT SAR Georeferencing Real-time Pollution Snow Ice Detection
2015/12/17
Synthetic aperture radar (SAR) data from RADARSAT-1 are an important operational data source for several ice centres around the world. Sea ice monitoring has been the most successful real-time operati...
MARS:High-Resolution Digital Terrain Model and Ortho-Image Mosaic on the Basis of MEX/HRSC Data
Adjustment Orientation Block Bundle DEM/DTM Mosaic Orthoimage
2015/12/17
The High Resolution Stereo Camera (HRSC) onboard the European Space Agency’s (ESA) Mars Express (MEX) has been orbiting Mars since December 2003. One of the main aims is to cover Mars globally in colo...