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1.
CH20040001 南非权威地名数据库的建立=Towards the Establishment of the Authoritative Geographical Names Database for South Africa[会,英]/Kubheka T∥Proceedings of the 21st International Cartographic Conference(ICC), 2003.8.10-16:Durban,South Africa.-217 根据1998年118号南非地名法成立的南非地名委员会,负责南非地名标准化工作。委员会向南非文化科技部负责。根据地名法,文化科技部应当建立一个研究室并对必要的基础设施进行维护,把计算机数据库、图书馆、参考材料和文件档案归并到一起。 (廖祥春)  相似文献   

2.
地图编制     
CH20040186信息系统是复杂制图生产中功能实现和数据分析的工具=Information System Development,the Tool for Function and Data Analysis,When Comples Cartog- raphic Production Is Required[会,英]/van der Steen S J F M//Proceedings of the 21st International Cartographic Conference(ICC),2003.8.10-16:Durban,South Africa -167 在地图产品的生产过程中,往往会遇到很多机遇但是却把握不住,例如:如果对万维网有所了解,就会发现有更多、更复杂的地图可以在互连网上生产、发布,但在实际中,制图者必须运用大量的工具来完成这些内容,而且在文件和目录中都必须有所有合适属性的数据。为了使客  相似文献   

3.
CH20052316地图编绘的布尔代数运算原理及制图综合算子数学模型=Boolean Algebra Arithmetic Elements inMap Compilation and the Mathematical Model of Cartog-raphic Generalizations/李占元(广西地图院),钟业勋(广西师范学院)∥武汉大学学报(信息科学版).-2005,30(5).-431~434根据基本集合X的幂集T(X)为布尔代数的数学原理,指出从基础底图X1向编绘原图X2实现的编绘过程实质上是布尔代数的运算过程。对选取、舍弃、派生、增补等制图综合算子分别给出了数学模型。图8参10CH20052317长对角线法实现GIS中矢量地图面状地物汉字注记…  相似文献   

4.
《测绘科学》2001,26(3)
[1]Lebedev V V.环境和经济问题的监测和区域地理信息系统=Monitoring of Environmental and Economic Problems and the Establishment of Regional Geographic Information Systems.Mapping Sciences & Remote Sensing,2000,38(1):67~77 [2]Gong Jianya.网络GIS的设计与实现=Design and Implementation of an Internet GIS.Geo-spatial Information Science,2001,4(2):1~7  相似文献   

5.
《测绘科学》2001,26(4)
[1]Fedae K.ISO/TC 211 地理信息与地球信息学框架参考模型=ISO/TC 211 Geographic Information and Geomatics-A Framework and Reference Model.International Archives of Photogrammetry and Remote Sensing, Vol.33, B2, 2000. 7.13-16:Amsterdam:192~196 [2]Gong Jianya.组织和管理分布式地理信息=Organizing and Managing of Distributed Geographical Information.International Archives of Photogrmmetry and Remote Sensing,Vol.33,B2,2000.7.16-23:Amsterdam:220~226 [3]EhlerM.集成地理信息系统:从数据综合到集成分析=Integrated Grographic Information System:Data Integration to Integrated Analysis.International Archives of Photogrammetry and Remote Sensing,Vol.33,B6,2000.7.13-16:Amsterdam:172~178 [4]Dasgupta A.国家(自然)资源信息系统=The National( Natural)Resources Information System.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2, 2000.7.13-16:Amsterdam:131~138 [5]Holland D.关于英国地形数据的全国数字化框架=A Digital National Framework for Topographic Data in Great Britain.International Archives of Photogrammetry and Remote Sensing,Vol,33,B2,2000.7.16-23:Amsterdam:303~308 [6].适合海道测量的最佳多波束回声测深仪=Towards Adequate Multibeam Echosounders.The International Hydrographic Bureau.The International Hydrographic Review,2000(1):67~80 [7]俄罗斯国家导航与海道测量研究所简介=Introduction of Gos. NINGI.Information Letter of Gos. NINGI, MOD:2001,5 [8]机载激光测深仪(LADS)=Airborne Laser Sounder.Journal of Hydrographic Surveying.-2001(4):14~20 [9]Vassilia K.GIS和遥感在发展中国家城市土地利用谈判中的应用=The Contribution of GIS and Remote Sensing in Urban Land Use Negotiation in Developing Countries.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:646~653 [10]Alexander K.GIS技术用于研究和监测格陵兰冰层=Studying and Monitoring the Greenland Ice Sheet Using GIS Techniques.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:678~685 [11]Efim K.高分辨率卫星数据用于评估小麦作物的生产率参数=Estimation on the Productivity Parameters on Wheat Crops Using High Resolution Satellite Data.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:717~722 [12]Franz K.轨道遥感数据和地学处理技术用于城市可持续性研究=Urban Sustainability Using Orbital Remote Sensing Data and Geoprocessing Techniques.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:728~732 [13]Gulch E.关于制图要素自动化提取的数字系统=Digital Systems for Automated Cartographic Feature Extraction.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:241~256 [14]Allan L.陆军测量局数字摄影测量及其发展=Digital Photogrammetry,Developments at Ordnance Survey.International Archices of Photogrammetry and Remote Sensing,Vol,33,B2,2000.7.16-23:Amsterdam:46~51 [15]Habib A.解决摄影测量中匹配问题的新方法=New Approach to Solving Matching Problems in Photogrammetry.International Archives of Photogrammetry and Remote Sensing ,Vol.33,B2,2000.7.16-23:Amsterdam:257~264 [16]Hild H.影像-地图自动化配准方法=A Strategy for Automatic Image to Map Registration.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:287~294 [17]Mckeown D M.自动化特征提取的性能评价=Performance Evaluation for Automatic Feature Extraction.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:379~394 [18]Raizman Y.以色列国家GIS数据库的三维数字摄影测量更新=Three-dimensional Digital Photogrammetric Update of Israeli National GIS Data Base.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.16-23:Amsterdam:443~448 [19]Saleh R.软拷贝摄影测量生产的成本与利润=The Cost and Benefits of Softcopy Photogrammetric Production.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:476~481 [20]Straub B M.图像自动化判读用于GIS更新=Towards the Automatic Interpretation of Images for GIS Update.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:525~532 [21]Mikhail E M….多源特征提取与城市环境可视化=Multi-source Feature Extraction and Visualization in Urban Environments.International Archives of Photogrammetry and Remote Sensing, Vol.33, B3/2,2000.7.16-23:Amsterdam:592~607 [22]Niederst M….精密摄影测量目标重建的通用数学模型=Generalized Mathematical Model of Precise Photogrammetry Reconstruction of the Objects.International Archives of Photogrammetry and Remote Sensing, Vol.33, B3/2,2000.7.16-23:Amsterdam:635~642 [23]Shan J….利用GIS数据的影像自动定向=Automatic Image Orientation by Using GIS Data.International Archives of Photogrammetry and Remote Sensing, Vol.33,B3/2,2000.7.16-23:Amsterdam:831~836 [24]Scaioni M.航空三角测量自动化系统的概念与测试=Concept and Testing of an Automatic System for Aerial Triangulation.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.16-23:Amsterdam:486~493 [25]Murai S.利用INS与GPS的集成系统开发机载三线扫描仪分析车速分布=The Development of Airborne Three Line Scanner with High Accuracy INS and GPS for Analysing Car Velocity Distribution.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:416~421 [26]Rajendram S.基于GIS的一体化土地利用/覆盖变化模型用于研究人与土地的相互关系=A GIS Based Integrated Land Use/Cover Change Model to Study Human-land Interactions.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/3,2000.7.13-16:Amsterdam:1212~1219 [27]Shi Zhongchao.GIS数据库修测:问题与解法=GIS Database Revision-The Problems and Solutions.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.13-16:Amsterdam:494~501 [28]Quadros C J.农业生产率的空间模拟:印度农业生态系统研究=National Level Spatial Modeling of Agricultural Productivity:Study of Flooded Agroecosystem.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/3,2000.7.13-16:Amsterdam:1191~1198 [29]Wang Mi.研究GPS信号与道路信息用于机动导航系统=Research on Match of GPS Signal and Road Information for Mobile Navigation System.International Archives of Photogrammetry and Remote Sensing,Vol.33,B2,2000.7.16-23:Amsterdam:598~602 [30]光栅海图显示系统与电子海图显示与信息系统的差异=Differences Between RCDS and ECDIS.International Maritime Organization∥SN/Cir.207 [31]In-joon K.利用空间不变的神经网络进行图像分类=Image Classification by Spatial Shift Invariant Neural Network.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:636~639 [32]Yousif H.遥感技术在可持续性森林管理中的用途=Inventory of Remote Sensing Applications in Forestry for Sustainable Management.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:575~579 [33]Waileung L.图像压缩技术对图像分类的影响=The Effects on Image Classification Using Compression Technique.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/2,2000.7.13-16:Amsterdam:744~751 [34]Marek M. 遥感观测值用于火山监测和减灾=Remote Sensing Observations for Volcano Monitoring and Hazard Mitigation.International Archives of Photogrammetry and Remote Sensing,vol.33,B7/3,2000.7.13-16:Amsterdam:905~909 (摘自<测绘文摘>)  相似文献   

6.
International Journal of GeographicalInformation Science,2004,18(2)050201 地图微积分在 GIS 中的应用:建议和论证= Map Calculus in GIS: aProposal and Demonstration [英]/Hak lay M.-107~125050202 模糊地理实体的分布= Areasof Fuzzy Geographical Enti  相似文献   

7.
主动式地理信息服务质量(QoAGIS)评估研究   总被引:2,自引:0,他引:2  
设计主动式地理信息服务质量(quolily of active geospatial information service,QoAGIS)评估系统,阐述主动式地理信息服务的内涵及其逻辑结构,提出AGIS质量评估指标的概念,并对其中的本征质量指标与广义质量指标的定量化实现进行研究,给出综合评估指标.最后,通过实验表明QoAGIS评估系统的适应性和可靠性.
Abstract:
Currently, the passive aspects of geospatial information service (GIS) and the unpredictability of QoGIS are unable to meet the applications in some deeper fields. A new evaluation system of quality of active geospatial information service (QoAGIS) is presented. The connotation and logical structure of AGIS is analyzed, in which it advanced basic event and its expression, event operation's methods, the expression of complex event and the driven rules, the indices of QoAGIS evaluation are presented, in which the intrinsic quality index and the generalized quality index are researched on. Finally the compositive evaluation index is calculated. The QoAGIS evaluation system has been used in an application of AGIS, the experiment indicated its adaptation and reliability.  相似文献   

8.
An algorithm (differential mode) is presented for the improvement of harmonic tidal analysis along T/P tracks, in which the differences between the observed sea surface heights at adjacent points are taken as observations. Also, the observation equations are constrained with the results of the crossover analysis; the parameter estimations are performed at 0.1° latitude intervals by the least squares. Cycle 10 to 330 T/P altimeter data covering the China Sea and the Northwest Pacific Ocean (2°-50°N,105°-150°E) are adopted for a refined along-track harmonic tidal analysis, and harmonic constants of 12 constituents in 8 474 points are obtained, which indicates that the algorithm can efficiently remove non-tidal effects in the altimeter observations, and improve the precision of tide parameters. Moreover, parameters along altimetry tracks represent a smoother distribution than those obtained by traditional algorithms. The root mean squares of the fitting errors between the tidal height model and the observations reduce from 11 cm to 1.3 cm.  相似文献   

9.
国际制图协会 (International Cartographic Association, ICA)第20届国 际会议将于2001年8月6日至10日在北京召开,会议的主题是面向21世纪的地图制图 (Mappin g the 21 Century)。   国际制图协会首次在我国召开,这将给我国广大地图制图工作者和有关科技工作者一个极好 的参与机会。本次会议涵盖了以下技术专题:   1) 地图制图的教育与培训;2) 地图制图历史和历史地图;3) 地图制图与环境;4) 海洋制 图;5) 卫星测绘;6) 国家与区域地图集;7) 军事制图;8) 地图设计与生产;9) 旅游制 图;10) 地图数据库和数字地图的安全、价格和版权;11) GIS 与数字制图;12) 多媒体制 图与电子地图;13) 空间数据的计算机制图综合;14) 空间数据基础设施与政策;15) 互联 网制 图;16) 空间数据可视化;17) 制图时态问题;18) 地图制图的国家和国际标准;19) 地理 空间数据共享;20) 地理空间数据的质量和评价;21) 残障人地图制图;22) 地图制图与儿 童;23) 妇女与制图;24) 地图制图理论和方法;25) 智能导航系统;26) 行星制图;27) 全球测绘;28) 山地制图。   本次会议征集论文的工作已于2000年10月30日截止。会议由中国测绘学会主办,其准备工作 正在有序地进行。除了学术交流外,届时大型地图展将同期举行。会议注册截止日期是2001 年6月30日。   联系地址是 Local organizing Committee for ICC 2001, State Burean of Surveying an d Mapping, 9 Sanlihe Road, Beijing 100830, China   Tel: +86-10-68449095/68346614   FAX: +86-10-68311654/68339095   E-mail: lcc2001@sbsm.gov.cn. 杜道生/供稿  相似文献   

10.
[1]Balce A E. Determination of optimum sampling interval in grid digital elevation models (DEM) data acquisition.Photogrammetric Engineering and Remote Sensing,1987,531:323~330 [2]Li Z L. Sampling strategy and accuracy assessment for digital terrain modelling: [Ph. D Thesis]. UK: University of Glasgow, 1990 [3]Li Z L. Variation of the accuracy of digital terrain models with sampling interval. Photogrammetric Record, 1992,14:113~128 [4]Li Z L. A comparative study of the accuracy of digital terrain models(DTMs) based on various data models. ISPRS Journal of Photogrammetry and Renote Sensing,1994,49(1):2~11 [5]Li Z L. Scale issues in geographic information science. In:Proceeding of International Workshop on Dynamic and Multi-dimensional GIS. Hong Kong, 1997. 143~158 [6]SISM. Specification of geospatial data (Provisional) for 1:10 000 digital elevation models. The Standard Institute of Surveying and Mapping (SISM), National Bureau of Surveying and Mapping, China, 1997(in Chinese) [7]USGS. National Mapping Program: Geospatial Data Standard, 1992 [8]Zhu Q, Cheng C J. The fast generation and dynamic updating of TIN. Journal of Wuhan Technical University of Surveying and Mapping, 1998(in Chinese)  相似文献   

11.
地球质心(CM)是整个地球的质量中心,地心运动是由地球系统的质量重新分布激励的,特别是流体圈层.利用SLR对LAGEOS 1/2卫星的距离观测,解算1993-2006年期间的地心运动时间序列,然后分别利用小波变换和最小二乘法分析该序列,发现地心运动存在长期和周期性变化.地心的长期运动表明地壳形状在变化.季节性变化是地心运动的主项,主要是由地球流体圈层的质量分布造成的,如海洋、大气和陆地水等.地心运动还存在其他周期性和准周期性变化.地心运动存在2~5年的长周期变化.许多周期都存在渐变,这表明整个地球系统质量和环境存在不规则的变化.
Abstract:
The center of mass of Earth (CM) is the center of total Earth's mass. The geocenter motion may be excit-ed by the mass redistribution of Earth system, especially the fluid layer. A time series of geocenter motion meas-ured with SLR on LAGEOS 1/2 is estimated and then analyzed with the wavelet transformation and the least squaresmethod, respectively. The secular and periodic variations of geocenter motion are detected. The long-term move-ment indicates that the crustal figure is changing, the north hemisphere and 180-degree hemisphere are shrinking, and the south hemisphere and O-degree hemisphere are swelling. The seasonal variations are the main componentswhich may be caused from the mass distribution of Earth fluid layer, e.g. ocean, atmosphere and continental wa-ter, There are many other periodic or quasi-periodic variations. There are long periodic variations through 2 to 5 years, Many periods gradually change, which indicates that there exist nonregular fluxes for the environment and mass of the whole Earth system.  相似文献   

12.
一般性问题     
CH20040885 基于GIS的国民经济动员分析决策系统设计=Design of Analysis and Decision-making Systemon National Economic Mobilization Based on GIS/李德仁,杨海峰,赵双明,史章君(武汉大学测绘遥感信息工程国家重点实验室)//武汉大学学报(信息科学版).-2004,29(4).-283-286探讨了信息时代国民经济动员软件系统的实现方式,并给出了行之有效的解决方案——基于Oracle的分布式资源数据库和基于GIS的分析决策系统,以及基于Domino/Notes的文档管理。图6参7  相似文献   

13.
[1]Zhang L i.对基于 ASP的国家地理空间数据交换体系安全性的研究 =Research on the Security of National Geospa-tial Data Clearinghouse based on ASP.Geo- spatial Inform a-tion Science,2 0 0 0 ,3(3) :47~ 5 1[2 ]Wu Hong.t- GIS与环境动态模型 =t- GIS and Environ-mental Dynam ic Models.Geo- spatial Information Science,2 0 0 0 ,3(3) :34~ 41[3]Shi Wenzhong.开发一种 GIS三维混合模型 =Develop-ment of a Hybrid Model for Three- dim ensional GIS.Geo-spatial Information Science,2 0 0 0 ,3(2 ) …  相似文献   

14.
CH20071296基于DEM的坡向提取算法对比分析——以黄土丘陵沟壑区的研究为例=Comparative Analysis of the Algorithms of Aspect Deriving from DEM—Take the Study of Loess Hill and Gully Area as the Case/陈楠,王钦敏(福州大学),汤国安(南京师范大学)∥遥感信息.-2007(1)  相似文献   

15.
16.
CH20061928大城市边缘区建设用地空间分布格局的定量化测度研究=Quantitative Measurement of SpatialPattern of Non-agricultural Land in Urban Fringe/陈晓军,刘庆生,张宏业(中国科学院)∥武汉大学学报(信息科学版).-2006,31(3).-260~265选择北京市房山区平原地区作为分析样区,在GIS技术的支持下对建设用地的空间分布格局进行了定量化测度研究。分析数据显示,其分布与交通干线具有明显的空间相关,交通干线具有一定的“轴向”聚集和辐射效应。图6表1参13CH20061929融合SAR和TM图像更新GIS道路网络数据=Update of Road Network…  相似文献   

17.
结合城市元胞自动机(CA)方法和虚拟现实(VR)技术,构建一个基于元胞的3维虚拟城市.首先建立基于元胞实体数据结构的城市CA模型,用以表示3维虚拟城市中建筑物的平面分布状态.通过CA模型生成一组城市建筑物的时空分布数据.然后利用DEM和DOM数据生成一个真实的3维地形,建立了不同种类的3维建筑模型库.最后通过程序调入城市3维建筑模型,根据元胞实体属性将模型布设于3维地形的相应位置,生成3维虚拟城市.
Abstract:
This paper unified the urban cellular automata method and the virtual reality technology to construct a three-dimension (3D) virtual city which was based on automata. First, constructing an urban CA model that is based on the data structure of cellular entities can present the plane distribution state of the building in the 3D virtual city. The CA model was used to compute a group of temporal layout data of buildings in the virtual city,Then,DEM and DOM data were used to generate real three-dimensional terrain and produce different type library about 3D building model. Finally, The program was used to load and lay the 3D buildings to the corresponding position in the 3D virtual terrain to obtain a 3D virtual city, according to the cellular entity attribute.  相似文献   

18.
大地测量学     
CH20041546利用CHAMP卫星星历及加速度计数据推求地球重力场模型=Recoverying the Gravitational Poten- tial Model from the Ephemerides and Accelermeter of CHAMP/徐天河,杨元喜(西安测绘研究所)∥测绘学报.-2004,33(2).-95-99 讨论基于CHAMP卫星星历和加速度计数据推求地球重力场模型的数值微分算法。首先利用牛顿内插公式, 根据CHAMP卫星星历观测值求解卫星运动加速度。在计算卫星加速度时,建议采用速度数据内插加速度。扣除其他非地球引力摄动加速度后,基于牛顿运动定律建立观  相似文献   

19.
一、美国土地利用概况(一)多元化土地所有制美国国土面积937.26万平方公里,其中私人所有的土地占58%,主要分布在东部;联邦政府所有的土地占32%,主要分布在西部;州及地方政府所有的土地占10%。土地以私有制为主,国有土地只占其中一小部分。美国法律保护私有土地所有权不受侵犯,各种所有制形式之间的土地可以自由买卖和出租,价格由市场供求关系决定。联邦政府所有  相似文献   

20.
地籍学     
CH20060632地籍管理中空间信息更新的改进方法=Improvement of Spatial Information Update Method in Ca-dastral Management System/尹辉增(武汉大学测绘学院)∥测绘工程.-2005,14(3).-33~35提出了地籍空间信息更新的改进方案,通过合理采集外业数据,适当增加多余观测值,确定更精确的坐标转换参数,提高更新的界址点的点位精度,缩小计算机量取面积和实测宗地面积的差值。图1表4参5CH20060633基于GIS技术的房产测绘系统设计与实现=Design and Implementation of a Real Estate MappingSystem Based on GIS Technique/杨平,裴亚波,…  相似文献   

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