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NON LINEAR OPTIMIZATION APPLIED TO ANGLE-OF-ARRIVAL SATELLITE BASED GEO-LOCALIZATION FOR BIASED AND TIME-DRIFTING SENSORS
Angle of Arrival Line of Sight Non-Linear Optimization
2016/7/8
Multiple sensors are used in a variety of geolocation systems. Many use Time Difference of Arrival (TDOA) or Received Signal Strength (RSS) measurements to estimate the most likely location of a signa...
REMOTE SENSING-BASED DETECTION AND SPATIAL PATTERN ANALYSIS FOR GEO-ECOLOGICAL NICHE MODELING OF TILLANDSIA SPP. IN THE ATACAMA, CHILE
WorldView-3 fog ecosystems spatio-spectral classification
2016/7/8
In the coastal Atacama Desert in Northern Chile plant growth is constrained to so-called ‘fog oases’ dominated by monospecific stands of the genus Tillandsia. Adapted to the hyperarid environmental co...
3D GEO-INFORMATION REQUIREMENTS FOR DISASTER AND EMERGENCY MANAGEMENT
3D Geo-information Data Requirements Disaster and Emergency Management
2016/7/8
A conceptual approach is proposed to define 3D geo-information requirement for different types of disasters. This approach includes components such as Disaster Type-Sector-Actor-Process-Activity-Task-...
ESTABLISHING A NATIONAL 3D GEO-DATA MODEL FOR BUILDING DATA COMPLIANT TO CITYGML: CASE OF TURKEY
3D Data Modeling CityGML 3D Building Model
2016/7/8
This paper presents the generation of the 3D national building geo-data model of Turkey, which is compatible with the international OGC CityGML Encoding Standard. We prepare an ADE named CityGML-TRKBI...
An approach to monitoring performance of geo-coded multisensor data fusion system
approach monitoring performance geo-coded multisensor data fusion system
2016/5/23
Performance monitoring of data fusion system of geo-coded multisensor involves monitoring the activity of the system,making management decisions and performing maintenance actions to reduce the influe...
THE RESEARCH OF FINE CLASSIFICATION AND CODING OF CITY GEO-NAMES
Geonames City Fine Classifying Coding
2016/3/17
Geonames are the bridge to link the socio-economic and spatial information. Names and related information products as essential mapping information resources, People can get more relevant information ...
FORMULATION OF GEO-SPATIAL SOLUTION FOR DISASTER MANAGEMENT
emergency disaster flood disaster management disaster errors information system decision process geospatial data mobile and web based geo-spatial data model geo-spatial maps quick information portal
2016/3/17
Mumbai city has become extremely vulnerable due to a large population living in huts especially in low-lying areas. Whenever city receives heavy rains; roads get waterlogged and the traffic is disrupt...
由整星混合光谱反演卫星特征的核心在于数理模型及反演算法,基于此建立了光谱混合数理模型并进行了实验验证。首先,对部件光谱散射模型、线性光谱混合模型、整星光谱解混方法进行了理论分析;然后,设计实验定标测量了高保真GEO卫星模型及部件的光谱BRDF特性,讨论了部件和材料光谱散射特性的差别;最后,采用非负约束最小二乘法对卫星整体光谱进行了解混分析,最大相对残差小于10%。实验结果表明,线性光谱混合模型及非...
针对地球静止轨道（GEO）上被服务航天器的远距离和非合作特点，提出一种高自主、高协同、多任务的编队空间机器人在轨服务系统方案，实现对非合作目标的自主交会接近。首先，分析GEO卫星轨道约束力小的轨道特征和非合作的信息交互特征，给出由操作空间机器人和监视空间机器人组成的编队在轨服务系统，设计交会接近相对测量分系统以及在轨服务飞行任务；接着，给出典型远距离交会接近的多视线相对导航方法与多冲量相对制导律；...
Texture Mapping of 3D Building Models with Oblique Direct Geo-referenced Airborne IR Image Sequences
Infrared images image sequences GPS inertial navigation 3D city models edge matching
2016/1/25
Infrared (IR)-radiation of buildings can be captured by thermal image data. Nowadays, thermal images of different parts of buildings
acquired in various scales are analysed, however conducted analysi...
GEO星载激光通信终端二维转台伺服机构热设计
激光通信终端 经纬仪式 二维转台伺服机构 热设计
2016/11/22
星载激光通信终端二维转台伺服机构是一种高精度指向调节机构，工作时对温度场稳定性及均匀性有较高要求，空间热环境剧烈变化是诱导其温度波动的外因。为达到在轨温度场精稳控制，提出了一种GEO星载经纬仪式激光通信终端二维转台伺服机构温控方案，通过机电热一体化结构设计选材、主动跟踪控温、散热及隔热设计等技术途径，实现了空间大尺寸的高精密二维转台伺服机构温度场稳定性与均匀性的精稳控制，并经过热试验与热分析综合验...
K-ORDER-BASED TOPOLOGICAL RELATIONS OF GEO-ENTITIES IN 3D RASTER SPACE
GIS Model Spatial Raster Three-dimensional Algorithms
2015/12/23
The theoretical foundations and application availability of topological spatial relationship research for three dimensional Geo-entities in raster space are discussed. The digital topology theory is a...
ADVANCING COLLABORATIVE GEO-INFORMATION INITIATIVES THROUGH JOINT EDUCATION PROGRAMMES AND OTHER REGIONAL SOLUTIONS:OPPORTUNITIES,CHALLENGES AND LESSONS LEARNT
International cooperation Capacity building Geo-information Spatial data infrastructure Joint education Technology transfer
2015/12/22
A working definition of international cooperation or collaboration used in this paper is the linking up of institutions for the purpose of providing Geo-information science related solutions for train...
CAPACITY BUILDING NETWORKS FOR EARTH OBSERVATION AND GEO-ICT A First Step towards a Virtual University
Earth observation Geo-information capacity development e-learning globalization educational networks
2015/12/22
Geo-ICT plays an increasing role in the management of spatial processes at different levels ranging from local to global scale. A world wide scientific and professional community develops and implemen...
GEO-SPATIAL INFORMATION TECHNOLOGY EDUCATION IN CHINA,PRESENT AND FUTURE
GIS Higher Education Review Achievement Present Prospect
2015/12/22
With the industrialization of GIS and the enhancement of GIS accreditation by government, enterprise, and society at the beginning of the 21st Century, geo-spatial information technology has experienc...