SatelliteOrbitComputation用于计算卫星轨道的matlab程序哈，分享

卫星工具软件STK(SatelliteToolKit)[4][29][30]是航天领域中先进的系统分析软件，由美国分析图形有限公司(AGI)研制，用于分析复杂的陆地、海洋、航空及航天等任务。
它可提供逼真的二维、三维可视化动态场景及精确的图表、报告等多种分析结果。
STK尤其在航天飞行任务的分析、设计、制造、测试、发射以及在轨运行等多个环节中有广泛的应用，具有对卫星导航干扰仿真系统中卫星编队飞行和轨道机动的三维视景显示、姿态分析、运行效果评估等功能。
stk11.2最高可支持与matlab2016b互联。

rtcm3decoder在实时数据处理中，需要使用到RTCM格式的数据，其中包括观测数据流和广播星历等。
=============================================================TheUniversityofNewSouthWales,Australia TheSchoolofSurveying&SpatialInformationSystemsSatelliteNavigationAndPositioningLaboratoryAuthorYongHeo(yong.heo@unsw.edu.au)LastModified05/FEB/2009Versionrtcm3decoderversion2.3 -GPSobservationmessagetype: 1001~1004 -AntennareferencepointX,Y,Z: 1005~1006 -Antennadescriptionandserialnumber:1007~1008 -GLONASSobservationmessagetype: 1009~1012 -GenerateRINEXfile -query&displayasouceinfomration

Thenewversionof6S(4.1)isavailable:download:6sv4.1.tar.Zfromkratmos.gsfc.nasa.gov(128.183.253.183)(useftpfortransfer,user:anonymouspasswd:"youremail")thenchangedirectoryto6SNB:6sv4.1.tar.Ziscompressed(standartunixcompress)Pleaseregistertotheusermailinglistbywritingto:6s@kratmos.gsfc.nasa.govTheMICROSOFTWORDdocument(version6.0forMacintosh,inAppleSingleformat)ofthemanualisalsoavailable.Ithasbeensplitin3parts:6smanv2.0_P1_msw6smanv2.0_P2_msw6smanv2.0_P3_mswMakesureyoudownloadthefilesinbinarymode(eitherbyftporFetch).Acompressedversionofthefilesisalsoavailable:6smanv2.0_P1_msw.Z6smanv2.0_P2_msw.Z6smanv2.0_P3_msw.ZUsethe"uncompress"unixcommandtoretrievetheoriginalWorddocuments,priortotransferthemtoMacorPC.APostScriptandaPDFversionofthemanualarealsoavailable:6smanv2.0_P1.ps,6smanv2.0_P2.ps,6smanv2.0_P3.ps6smanv2.0_P1.pdf,6smanv2.0_P2.pdf,6smanv2.0_P3.pdf

高清PDF电子书，关于卡尔曼滤波和小波的，经典书籍，第四版了Kalmanfilteringisanoptimalstateestimationprocessappliedtoadynamicsystemthatinvolvesrandomperturbations.Moreprecisely,theKalmanfiltergivesalinear,unbiased,andminimumerrorvariancerecursivealgorithmtooptimallyestimatetheunknownstateofadynamicsystemfromnoisydatatakenatdiscretereal-time.Ithasbeenwidelyusedinmanyareasofindustrialandgovernmentapplicationssuchasvideoandlasertrackingsystems,satellitenavigation,ballisticmissiletrajectoryestimation,radar,andfirecontrol.Withtherecentdevelopmentofhigh-speedcomputers,theKalmanfilterhasbecomemoreusefulevenforverycomplicatedreal-timeapplications.Inspiteofitsimportance,themathematicaltheoryofKalmanfilteringanditsimplicationsarenotwellunderstoodevenamongmanyappliedmathematiciansandengineers.Infact,mostpractitionersarejusttoldwhatthefilteringalgorithmsarewithoutknowingwhytheyworksowell.Oneofthemainobjectivesofthistextistodisclosethismysterybypresentingafairlythoroughdiscussionofitsmathe-maticaltheoryandapplicationstovariouselementaryreal-timeproblems

Enviro-ThecompletedynamicAAAskyandweathersolution!Veryeasysetup:Thenewmanagercomponentmakesiteasyaspossibletosetupenviroinyourscenes.IncludesEnviroLite!ThisversionincludesEnviroLiteversionaswell.Idealformulti-platformprojects:Useliteversionforlowendplatformlikemobilesandstandardforpcandconsoles.Withoneclickyoucanswitchbetweenenviroversions.ThecentralizedAPIforyourownscriptswillworkforbothversionsofcourse.ProfileSystem:Enviro'snewprofilesystemmakestweakingyourskyaseasyaspossible.Tweaksettingsinruntimeandsavetoprofile.Loadprofilesindesignandruntime.Createdifferentprofilesfordifferentscenesorshareyourconfigurationswithotheruser.Day-Nightcycle:Envirosupportsarealisticday-nightcycle.Withcorrectsunandmoonpositionswithfulllocationsupportwithlatitudeandlongitude.Youhaveoptionstouseyoursystemtimeorletenviroupdatetimebasedonrealtimeminutes.Skybox:Enviroincludesanadvancedfastatmosphericskyboxshadertogetgreatlookingskies!Yougotalotofoptionstotweaktheskyandevencansetupfunkyalienskies!Lighting:Envirowillrealisticlylightyourscenebasedonsunaltitude.Youhavecompletecontroloverlightintensityandcolorbymodifyingcurvesandgradientsrightineditor!Youalsocanchoosebetweendifferentambientlightmodesofcourse.Seasons:Envirowillchangeseasonsandgotacomponentstoswapoutgameobject,materialsandtexturesofunityterrain.Youarenotlimitedtorealisticsettings!Youcansetthestartandenddaysofeachseason.Enviroalsosupportstemperaturesimulation,basedonseason,timeofdayandcurrentweather.Clouds:Environewraymarchingcloudsystemisbasedonlatestcloudrenderingpapers.Thesewillbringyouskytolifeandofferplentyoptionstocustomize.CloudsperformanceisoptimizedbyusingtechsliketemporalreprojectionandLODsystem.Inadditiontherearealsofastflatandparticlecloudsoptionstomixoruseformaximumperformance.Fog:Needstunnishinglookingfog?Enviroincludesanadvancedlightscatteringfogimageeffectwithdistance,heightandskyfogsupport.Needfogonyourtransparentmaterial?Noproblem,withonlyafewlinesofcodeyoucouldmodifyyourowntransparentshaderstobefoggedcorrectly.Andafewparticleandtransparentshadersalreadyincludedtogetyoustarted!Weather:Enviroincludesaverypowerfullweathersystem.Youcancreateyourownweathertypesanddrivelight,sky,fogandclouds.Envirosupportsallkindofunityshurikenparticleeffectstogiveyouthefreedomtocreateanyweathereffectyoucanthinkof.Itincludes11premadeweathertypesincluding:ClearSky,cloudy,raining,stormy,snowyandfoggyweather.Youcanenablelightningstormsandchoosedifferentambientandweathersoundsforeachweatherwithsmoothtransitions.VolumetricLighting:NeedsomevolumelighteffectsyouseeinAAAgames?Noproblem,envirosupportvolumetriclightingfordirectional,pointandspotlightsoutofthebox!SceneViewEffects:Previewenviroeffectslikeclouds,volumelightingandfogdirectlywhileyouworkonyourscenes.Youcanenableordisablesceneviewpreviewforeacheffectindividualofcourse.Networking:EnvirosupportUNet,MirrorandPhotonoutofthebox.Itwillsynchronizetimeandweatherwithallyourplayers.Enviroalsogotanminimalmodeforheadlessserverstoonlycalculatetimeandweatherbutnothingmore.VirtualReality:Envirosupportsmultiandsinglepassstereoscopicrendering!TestedonOculusRift.That'snotall!Enviroincludesalotmoregreatfeatures:*Eventsystemforyougamelogic.*WeatherZones.Createasmanyzoneswiththeirownweatherforyourbiomes.*Orbitingsatellites.*VegetationGrowth.Andyoucanusealotofawesome3rd-partyassetsrightofthebox.Activateandadd3rd-partysupportthroughthenewinterface.Againitseasyandfastaspossible!*GaiaCompatible!*CTSCompatible!*AQUASIntegration!*LUXWaterIntegration!*FogVolume3Integration!*VegetationStudioProIntegration!*PlaymakerActions!*ReliefTerrainShaderIntegration!*UBERShaderIntegration!*MicroSplatIntegration!*MegaSplatShaderIntegration!*LuxShaderIntegration!*PhotonNetworkIntegration!*MirrorNetworkIntegration!*PegasusIntegration!Requirements:*Supportgammaandlinearcolorspace.*Supportforwardanddeferredrendering.*WorkingonDX9,DX11,DX12,OpenGlCore,MetalandVulkan.*VolumetricLightingrequiresatleastshader-model3.5+andwillbedeactivatedonDX9Currentlimitation:*Volumetriccloudsarecurrentlynotsuitableforfly-throughs!Willbeworkedoninlaterupdates!

Inthisuniquetext,authorsAlfriendetal.provideacoherentdiscussionofspacecraftrelativemotion,bothintheunperturbedandperturbedsettings,explainthemaincontrolapproachesforregulatingrelativesatellitedynamics,usingbothimpulsiveandcontinuousmaneuvers,andpresentthemainconstituentsrequiredforrelativenavigation.Theearlychaptersprovideafoundationuponwhichlaterdiscussionsarebuilt,makingthisacomplete,standaloneoffering.Intendedforgraduatestudents,professorsandacademicresearchersinthefieldsofaerospaceandmechanicalengineering,mathematics,astronomyandastrophysics,SpacecraftFormationFlyingisatechnicalyetaccessible,forward-thinkingguidetothiscriticalareaofastrodynamics.Thefirstbookdedicatedtospacecraftformationflying,writtenbyleadingresearchersandprofessorsinthefieldDevelopsthetheoryfromanastrodynamicalviewpoint,emphasizingmodeling,controlandnavigationofformationflyingsatellitesonEarthorbitsExamplesusedtoillustratethemaindevelopments,withasamplesimulationofaformationflyingmissionincludedtoillustratehighfidelitymodeling,controlandrelativenavigation

Amethodofestimatingtherelativeclocksbetweentwospaceborneglobalpositioning.system(GPS)receiversbasedonthesingle-difference(SD)observationsisinvestigatedin.thispaper.Especially,theadvantagesofintroducingadouble-difference(DD)solution.constraint,includingtheorbitsandambiguities,arediscussedwiththesimulateddata.andtherealdataofGravityRecoveryAndClimateExperiment(GRACE)satellites.The.theoreticalaccuracyanalysisshowsthattheaccuracyofthere

是Unity3d扩展工具，可从现实世界中提取数据。
它可以单独运行或作为TerrainComposer的扩展。
WorldComposer有一个独一无二阴影删除工具。
卫星图像（它使用Microsoft卫星地图，因为Google卫星地图有Logo,而它没有）总是有阴影的，如果在游戏或模拟器中直接使用卫星图像，为配合此阴影，需要把太阳放在一个固定的位置。
WorldComposer的阴影删除算法使效果看起来更好，且允许有白天和黑夜周期。
WorldComposer像Google地图一样提供滚动和缩放功能，你可以创建多个区域，每个区域显示真实世界的几公里。
卫星图像可以导出到缩放级别19，每个像素的分辨率为0.3米。
海拔数据可以导出到缩放级别14，这是每个像素的分辨率10米。
WorldComposer仅输出海拔高度图（elevationheightmaps）和卫星图像（satelliteimages），使用它就可以创建看起来像真实世界的地形。
当于TerrainComposer组合使用时，可混合/修改高度图，或增加perlin噪点以增强细节，如把卫星图像与图片纹理进行混合，增加云的阴影等等。
还可在上面放置树、草和对象，以进行无限制的调整和编辑。

GNSS惯性导航组合(第3版)GlobalNavigationSatelliteSystems,InertialNavigation,andIntegration,ThirdEditionISBN9787121278754配套MATLAB源代码MohinderS.Grewal,CaliforniaStateUniversityatFullertonAngusP.Andrews,RockwellScienceCenterChrisG.Bartone,RussCollegeofEngineeringandTechnology陈军余金峰纪学军等译

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。