简介：Thetheoreticalframeworkofvisualsimulationinvirtualrealityisdiscussed.Thenewconceptofvisualimagespaceissupposed.Onthebasisofvisualimagespace,invisualperceptivesense,VRisconsideredasaspatialsimulation.Theobjectiveofthespatialsimulationistotransformphysicalspacetovisualimagespace.Last,theprototypesystem,surveying&mappingvirtualReality(SMVR),isdeveloped,andthespacesimulationaboveisrealized.ByuseofSMVR,thereal3Drepresentation,3Dvisualanalysis,virtualplananddesignscanbeimplemented.

简介：Roughsetisanewapproachtouncertaintiesinspatialanalysis.Inthispaper,roughsetsymbolsaresimplifiedandstandardizedintermsofroughinterpretationandspecializedindication.Roughspatialentitiesandtheirtopologicalrelationshipsarealsoproposedinroughspace,thusauniversalintersectedequationisdeveloped,androughmembershipfunctionisfurtherextendedwiththegrayscaleinourcasestudy.Wecompletethreeworks.First,asetofsimplifiedroughsymbolsisadvancedonthebasisofexistingroughsymbols.Second,roughspatialentityisputforwardtostudytherealworldasitis,withoutforcinguncertaintiesintocrispset.Third,roughspatialtopologicalrelationshipsarestudiedbyusingroughmatrixandtheirfigures.Therelationshipsaredividedintothreetypes,crispentityandcrispentity(CC),roughentityandcrispentity(RC),androughentityandroughentity(RR).Auniversalintersectedequationisfurtherproposed.Finally,themaximumandminimummapsofriverthematicclassificationaregeneratedviaroughmembershipfunctionandroughrelationshipsinourcasestudy.

简介：Conventionalmultispectralspaceforcolorrepresentationismodifiedbyalgorithmofclusteranalysisandprincipalcomponentanalysis.Resultsshowthatthenewermodifiedmultispectralspacenotonlykeepingthestructureoftheoriginalspacebuteliminatingzero-crossesaswellitsaccuracyofcolorrepresentationishigherthantheconventional.

简介：Thispaperdevelopsawide-bandmulti-spectralspaceforcolorrepresentationwithAitkenPCAalgorithm.Thisnovelmathematicalspaceusingthebroad-bandspectramatchingmethodaimsatimprovingtheaccuracyofcolorrepresentationaswellasreducingcostsforprocessingandstoringmulti-spectralimages.Theresultsshowthatthespacecanpresentourexperimentaloriginalspectralspaces(i.e.MunsellcolormattandDIN-6164colorchips)withhighefficiency,andthatthespanningspacewiththreeeigenvectorscanpresenttheoriginalspaceatmorethan98%CSCR,andwhen5eigenvectorsareuseditcancoveralmostthewholeoriginalspaces.

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简介：Thispaperinvestigatesthemathematicfeaturesofnon-linearmodelsanddiscussestheprocessingwayofnon-linearfactorswhichcontributestothenon-linearityofanonlinearmodel.Onthebasisoftheerrordefinition,thispaperputsforwardanewadjustmentcriterion,SGPE.Last,thispaperinvestigatesthesolutionofanon-linearregressionmodelinthenon-linearmodelspaceandmakesthecomparisonbetweentheestimatedvaluesinnon-linearmodelspaceandthoseinlinearmodelspace.

简介：在调查和控制网络(CSN)之间的关系forearth轨道卫星和空间测地学，和在为深空格的CSN之间的关系天的天体和察觉者，和深空格察觉简短被总结，那么是调查的深空格和控制网络(DSN)的基本技术需要。然后，这些技术，成分并且散布中国卫星CSN(CSCSN)和在中国观察机构的另外的收音机被介绍。与主要CSCSN和另外的观察机构，最后，为中国的一些工程被分析重建更完美的CSCSN，并且建立DSN并且说。

简介：在线性代数学的L2向量空间的业主转变标准结构函数被介绍，并且为遥感图象的边改进被认识到。Theexperiment结果与传统的拉普拉斯算符和Sobel边改进相比，它证明新方法的效果比传统的算法的好。线性代数学的Matrixdecomposition在信号处理广泛地被使用。在最近的年里，在象Gram-Schmidt那样的线性代数学的L_2向量空间的直角的分解，Givens算法根据遥感的特长被介绍进遥感数据特征抽取光谱信息和公平结果被导出。在这篇论文，业主三角分解算法被用于遥感数据的分析并且把标准作为一样。