搜索结果: 1-15 共查到“知识库 大地测量技术”相关记录398条 . 查询时间(1.406 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...
地壳浅部结构与介质属性是认识地球最外部圈层构造和变形机制的基本依据。地震学方法是探测地球内部结构与介质属性的一种重要手段。现今常用来约束地壳浅部结构的方法包括主动源探测和被动源探测。主动源探测成像精度高，但由于耗资较大不便于开展区域尺度结构研究；被动源探测成像精度较低，而且通常对台站和/或事件分布要求较高（如区域体波走时成像和背景噪声面波成像）。这一定程度上制约了对地壳浅部结构进行区域尺度精细成像...
用于锦屏深地核天体物理研究的强流加速装置的设计与试验进展
深地实验室 强流加速装置 直接测量
2021/2/23
对揭示元素形成及天体起源具有重要作用的关键低能核反应由于反应截面较小，同时受宇生高能射线影响，在地面环境难以进行直接测量。在极低本底的深地环境中，利用强流离子加速器打靶，进一步提高关心核反应的发生率，就可在地球开展接近伽莫夫能区低能核反应截面直接测量。锦屏深地实验室（CJPL）具有优越的地理环境，可有效屏蔽宇生高能射线。依托CJPL的有利条件，中国原子能科学研究院正在开展核天体物理关注能区核反应直...
ESTABLISHMENT OF NEW FITTED GEOID MODEL IN UNIVERSITI TEKNOLOGI MALAYSIA
MyGEOID gravimetric geoid fitted geoid
2018/11/8
The purpose of this study is to produce fitted geoid for Universiti Teknologi Malaysia (UTM), Johor Bahru by using precise levelling and 3D GNSS control network technique. This study focuses on the th...
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...
CLASSIFICATION OF DUAL-WAVELENGTH AIRBORNE LASER SCANNING POINT CLOUD BASED ON THE RADIOMETRIC PROPERTIES OF THE OBJECTS
airborne laser scanning LiDAR multispectral laser scanning classification OPALS GNDVI
2018/6/4
Airborne laser scanning (ALS) is a well-known and willingly used technology. One of the advantages of this technology is primarily its fast and accurate data registration. In recent years ALS is conti...
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...
EXPLORING THE APPLICABILITY OF SEMI-GLOBAL MATCHING FOR SAR-OPTICAL STEREOGRAMMETRY OF URBAN SCENES
TerraSAR-X WorldView-2 dense matching semi-global matching (SGM) data fusion SAR-optical stereogrammetry
2018/6/4
Nowadays, a huge archive of data from different satellite sensors is available for diverse objectives. While every new sensor provides data with ever higher resolution and more sophisticated special p...
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 ...
THE EXTENT OF AGRICULTURAL LAND DAMAGE IN VARIOUS TSUNAMI WAVE HEIGHT SCENARIOS: DISASTER MANAGEMENT AND MITIGATION
Tsunami, Run-up Modelling, Remote Sensing, Risk Management and Mitigation
2018/4/18
The southern coastal areas of Java are highly vulnerable areas of earthquake hazard because they located 200 km from the southern Java subduction zone. This zone is an active seismicity area, re...
LAND USE/LAND COVER CHANGE DETECTION USING MULTI–TEMPORAL SATELLITE DATASET: A CASE STUDY IN ISTANBUL NEW AIRPORT
Multi-temporal satellite dataset Land Use/Land Cover Landsat-8 Sentinel 2A Change detection
2018/4/18
In recent years, especially in metropolitan cities such as Istanbul, the emerging needs of the increasing population and demand for better air transportation capacity have led to big environmental cha...
Accelerometer-measured dose-response for physical activity, sedentary time, and mortality in US adults
sedentary behavior physical activity mortality accelerometer light-intensity activity moderate-to-vigorous intensity activity
2018/12/18
Background: Moderate-to-vigorous–intensity physical activity is recommended to maintain and improve health, but the mortality benefits of light activity and risk for sedentary time remain uncertain.
高光谱遥感能连续获取地物光谱图像，这一技术能大大提高估算叶面积指数的水平。利用无人机搭载成像高光谱仪获取作物光谱信息反演叶面积指数对精准农业生产与管理意义重大。通过灰色关联度排序、赤池信息量准则和偏最小二乘法( GＲA-PLS-AIC) 选择了三角植被指数( TVI) 、比值植被指数( ＲVI) 、红边植被指数( NDVI705) 、归一化植被指数( NDVI) 和重归一化植被指数( ＲDVI) ...
SYNTHETIC APERTURE RADAR (SAR) BASED CLASSIFIERS FOR LAND APPLICATIONS IN GERMANY
LBM-DE Land cover polarimetry SAR Sentinel-1 Sentinel-2
2016/7/5
Land cover information is essential for urban planning and for land cover change monitoring. This paper presents an overview of the work conducted at the Federal Agency for Cartography and Geodesy (BK...