最新刊期
卷 ， 期 1 ， 1995
- 摘要：This paper summarizes the geological and image processing resultsachieved by the Spaceborne SAR for GeologicaI Applications program,In use of ERS-1 SAR and JERS-1 SAR data, some of the ductile shear deformation zones in EW direction were found in Jiaodong Region,one of the most typical shear zonehas detailed expression in this paper.The shearing movements in this directionplayed an important role in gold enrichment in Jiaodong Region. On the basis ofthe image analysis, ground truth checking and microscope observing,a hypothesis onTangjiapo impact crater were raised.Meanwhile,the image processing methods ofnoise depression and texture analysis were developed.关键词：Geological detection;Spaceborne SAR data;Impact crater
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发布时间：2021-06-10 - 摘要：The research of the gap probability of forest canopy has been donefor three decades.Two methods,radlative transfer and geometric optics,have beenused seperately in the research of modeling gap probality,and both lead to impor-tant results.This paper is focus on the combination of the two methods so as todevelop a hybrid model.to check the new model,it is important to obtain experi- ment data,so we make the measurement carefully,and create some new ways formeasurement,for example,“method of photography”,“method of parallel light”,which both are economical and convenient methods.关键词：Gap probability;radiative transfer;Geometrical optic
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发布时间：2021-06-10 - 摘要：In this paper both home and abroad successful applications of remotesensing technique in direct oil-gas exploration in recent years have been studied svs-tematically.On the base of systematic summary,we have abtained the Hvdrocarbonmicro-seepage theory,the model for direct exploration of oil-gas reservoir by use ofremote sensing techniques.We also propose the view-point of the current status andfuture development of remote sensing technique.关键词：Remote Sensing Technique;Hydrocarbon Micro-seepage;Oil-gasProspect Model
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发布时间：2021-06-10 - 摘要：The pattern recognition is always one of the most important aspectsin the remote sensing application field.As we know,the visual interpretation ofrocks is based on not only the spectral characteristics of rocks, but espiclally theirtexture structures.Most of the traditional texture analysls methods are developed byusing the statistical characteristics of the textures in the spacial and frequentialfields. In 1968,Mandelbrot first brought forth the concept of fractional Brownian mo-tion field,and later pronounced that many of the natural object:and procedurescould be well modelled bv fractional Brownian function. Based on the above theory about fBm model,we developed a method for textureanalysis,which was applied to classification of rocks in the test area selected fromMSS image of Guiyang scene,and got a satisfactory result.But,the fBm model isa long-correlative model,and is more sensitive to the low frequential informationsthan to the high ones,therefore,it is more suitdble for the rock recognition in tho- se areas where the terrain doesn’t undulate very forcely and the image textures areisotropic and well corresponding to various rocks.关键词：Fractional brownian surface;Texture analysis;Pattern recogni-tion;Rock classification
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发布时间：2021-06-10 - 摘要：Based on systematical analysis of remote sensing and its applications,a general structure diagram of modern remote sensing technical svstem is presentedin this paper.Its main contents,operational procedures and relationships betweenthe components in the diagram are also discribed.Then,structures,characteristicsand development trends of technical systems seperately for remote sensing data acqui- sition,analysis and applications are discussed in detail.Finally,author’ s opinionson integration between remote sensing and GIS,development of series applied tech- niques,fundamental research and commercialization of remote sensing techniquesare indicated.关键词：remote sensing;Technical systems;Development trends
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发布时间：2021-06-10 - 摘要：The research mainly focused on the integrated Remote sensing infor-mation processing technique.The main achievements are:reducing the interferenceof vegetation and frozen zone using special processing on remote sensing data. Theuranium information was extracted in quantity from spectrum image so that the structure aIteration zone can be revealed geochemically for ore exploration accordingto rock reflectance characteristics.Highly geometric registered images for ore exp-loration was initiated by extracting under ground Structure information based on gra-vity and magnetic images,It is concluded that, with this technique, a breakthroughin minerals prospecting could be made and it also shows scientific and practical of the advanced technique.关键词：Multi-source information;Integrted processing
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发布时间：2021-06-10 - 摘要：In this paper,the main index of identification of waterlog damage usingremote sensing are stated.By the discussion on related factors of waterlog damagesuch as the soil thermal inertia,soil water and soil temperature,the basic princip-les and methods of identification of waterlog damage are suggested.Because thewaterlog damage is related to many factors,the discriminant of waterlog damagewith many variables is developed based on the analysis of geographical relationships. The results show that remote sensing technique can be used to identify the waterlogdamage.关键词：Waterlog damage;Soil thermal inertia;Soil water;Soil tempera-ture;Identification
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发布时间：2021-06-10 - 摘要：The classification accuracy of vegetation mapping by satellite ima- gery in a complex terrain environment can be improved by using ancillary data andimagery spatial features extracted from the images（Richord,1992）.Thls study isto test the role of GIS spatial and spectral analysis model in aiding the classifica- tion of satellite data. Three GIS programs is developed,which improve the accu- racy of unsupervised classification for SPOT data from 37.41% to 71.67%. Second objective is to test the ability of two satellite system,SPOT and LandsatThematic Mapper（TM）,in mapping of vegetation in mountain region,Both data areprocessed with supervised classification in-corporating with ancillary data. The ac- curacy with SPOT data is higher than with TM.关键词：Vegetation Mapping;GIS Model;Ancillarv data
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发布时间：2021-06-10 - 摘要：Data model is a representation of data and its relation. It is consi-dered very important in database design. In constrast to alphanumerical data, spati- al data is characterised by its large magnitude and complexity.Therefore,it is ofsignificance to do research on spatial data model.Most commericial GISes are basedon relational data model.However,its drawbacks on representing spatial entitiesand their interrelations have led to the separation of graphic database and attributedatabase. In order to overcome this problem,extended relational data model andobject-oriented data model are explored.This paper introduces these three data mo-dels and their corresponding GIS architecture,analyses their pros and cons, and pre- sents the relation between spatial data model and GIS architecture.关键词：GIS;Data model;Architecture
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发布时间：2021-06-10 - 摘要：A method of monitoring urban expansion and environment changebased on TM data is described.Four WRS 123/32 scenes of TM images of Beijingcity acquired on Oct.3,1984,Sep.26,1987,Oct.17,1989 and Oct.25, 992 res-pectively were registered each other with high geometric accuracy less than 0.5 pixelerrors and normalized at the same radiative level of 1984’s TM image. Throughnumerical analysis of TM data,a set of effective processing,interfering factors wereeliminated in extracting urban expansion and environment change information from1984 to 1992.Finally,a set of variation maps of bult-up area,greenlands,waterbody and heat island were obtained by means of micro computer image processingsystem. The bult-up area extended about 3% each year.The water body increasedfrom 4.9 to 19.1 squarekms.The greenlands where the trees,shrubs,grass and flo-wers were growing, have been changed from 132.1 to 151.7 squarekms.All of thesedemonstrate that the quality of Beijing environment has been improved graduallyduring the last eight years.关键词：Monitoring;urban expansion;Environment change;Image appliedprocessing
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发布时间：2021-06-10 - 摘要：Background,conception,theory,method and technical system of 3“S”integration are introduced briefly in the paper and so are it’s importances in thearea of remote sense.pressing demand by global change,resources and environmentaldynamic monitoring and super information highway,3“S”integration wll be a ma- jor which scientist’S attentions are drawn.关键词：S” integration;Information technology;Compound technical system
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发布时间：2021-06-10
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