MIMOOFDMSimulator:OFDM.m:OFDMSimulator(outerfunction)create_channel.m:GeneratesaRayleighfadingfrequency-selectivechannel,parametrizedbytheantennaconfiguration,theOFDMconfiguration,andthepower-delayprofile.svd_decompose_channel.m:Sincefullchannelknowledgeisassumed,transmissionisacrossparallelsingularvaluemodes.Thisfunctiondecomposesthechannelintothesemodes.BitLoad.m:Applythebit-loadingalgorithmtoachievethedesiredbitandenergyallocationforthecurrentchannelinstance.ComputeSNR.m:Giventhesubcarriergains,thissimplefunctiongeneratestheSNRvaluesofeachchannel(eachsingularvalueoneachtoneisaseparatechannel).chow_algo.m:ApplyChow'salgorithmtogenerateaparticularbitandenergyallocation.EnergyTableInit.m:GiventheSNRvalues,formatableofenergyincrementsforeachchannel.campello_algo.m:ApplyCampello'salgorithmtoconvergetotheoptimalbitandenergyallocationforthegivenchannelconditions.ResolvetheLastBit.m:Anoptimalbit-loadingofthelastbitrequiresauniqueoptimization.modulate.m:Modulatetherandominputsequenceaccordingtothebitallocationsforeachchannel.ENC2.mat:BPSKModulatorENC4.mat:4-QAMModulator(Graycoded)ENC16.mat:16-QAMModulator(Graycoded)ENC64.mat:64-QAMModulator(Graycoded)ENC256.mat:256-QAMModulator(Graycoded)precode.m:Precodethetransmittedvectorateachtimeinstancebyfilteringthemodulatedvectorwiththeright-inverseofthechannel'srightsingluarmatrix.ifft_cp_tx_blk.m:IFFTblockoftheOFDMsystem.channel.m:ApplythechanneltotheOFDMframe.fft_cp_rx_blk.m:FFTblockoftheOFDMsystem.shape.m:Completethediagonalizationofthechannelbyfilteringthereceivedvectorwiththeleft-inverseofthechannel'sleftsingularmatrix.demodulate.m:Performanearestneighborsearchknowingthetransmitconstellationused.

航母一键解包打包工具3.6_20190401愚人节最终版更新如下：1.新增打包解包boot\rec过程中转换file_contexts.bin日志报错提示，便于分析2.打包容量字节采用全新算法自动计算字节大小，此版本无需file_contexes打包3.br/dat/img三种格式自定义大小打包时自动计算航母目录下system或vendor目录属性字节大小4.dat和br格式手动改为自动识别安卓版本打包，无需手动选择5.修改选项01/01/03/04内核rec打包解包逻辑为自动模式无需手动选择安卓版本6.谷歌adb/fastboot驱动更新为20190212谷歌发布官方版本

出版日期:2013年12月5日Thisbookisanin-depth,systematicandstructuredtechnicalreferenceon3GPP'sLTE-Advanced(Releases10and11),coveringtheory,technologyandimplementation,writtenbyanauthorwhohasbeeninvolvedintheinceptionanddevelopmentofthesetechnologiesforover20years.Thebooknotonlydescribestheoperationofindividualcomponents,butalsoshowshowtheyfitintotheoverallsystemandoperatefromasystemsperspective.Uniquely,thisbookgivesin-depthinformationonupperprotocollayers,implementationanddeploymentissues,andservices,makingitsuitableforengineerswhoareimplementingthetechnologyintofutureproductsandservices.Reflectingtheauthor's25plusyearsofexperienceinsignalprocessingandcommunicationsystemdesign,thisbookisidealforprofessionalengineers,researchers,andgraduatestudentsworkingincellularcommunicationsystems,radioair-interfacetechnologies,cellularcommunicationsprotocols,advancedradioaccesstechnologiesforbeyond4Gsystems,andbroadbandcellularstandards.Features:anend-to-enddescriptionofLTE/LTE-Advancedtechnologiesusingatop-downsystemsapproach,providinganin-depthunderstandingofhowtheoverallsystemworks;detailedalgorithmicdescriptionsoftheindividualcomponents'operationandinter-connection;strongemphasisonimplementationanddeploymentscenarios,makingthisaverypracticalbook;anin-depthcoverageoftheoreticalandpracticalaspectsofLTEReleases10and11;andclearandconcisedescriptionsoftheunderlyingprinciplesandtheoreticalconceptstoprovideabetterunderstandingoftheoperationofthesystem'scomponents.Itcoversallessentialsystemfunctionalities,features,andtheirinter-connectionsbasedonaclearprotocolstructure,includingdetailedsignalflowgraphsandblockdiagrams.Itincludesmethodologiesandresultsrelatedtolink-levelandsystem-levelevaluationsofLTE-Advanced.ItprovidesunderstandingandinsightintotheadvancedunderlyingtechnologiesinLTE-AdvanceduptoandincludingRelease11:multi-antennasignalprocessing,OFDM,carrieraggregation,coordinatedmulti-pointtransmissionandreception,eICIC,multi-radiocoexistence,E-MBMS,positioningmethods,real-timeandnon-real-timewirelessmultimediaapplications.

py载体用于连接运营商集线器的python模块。

IEEEStd802.3bd-2011Part3CarrierSenseMultipleAccesswithCollisionDetection(CSMACD)AccessMethodandPhysicalLayerSpecificationsAmendment8MACControlFrameforPriority-basedFlowControl

HP93KRF模块详尽教程Lesson1:RFHardwareLesson2:ReviewPortSetups&Multi-siteLesson3:ReviewPortScaleRFSpecificationsLesson4:RFSoftwareLesson5:CWLoopbackLabsLesson6:SetUpSequencingLesson7:ControlRFTriggeringLesson8:ReviewSamplingParametersLesson9:MeasureIntermodulationDistortion(RFtoRF)Lesson10:MeasureIntermodulationDistortion(RFtoRF)Lesson11:CalibrateRFSubsystemLesson12:Multi-TestFlowCalibrationLabLesson13:ModulatedStimulusandMeasurementLesson14:ACLR&EVMLabLesson15:UseRFAPIs.Lesson16:PortScaleFeatureDemoLesson17:MeasureCarrierSuppression(BBtoRF)Lesson18:MeasureIQPhase/AmplitudeImbalance(RFtoBaseband)QuizReviewPortSetups&Multi-site

ContentsPrefacexiiiLimitsofLiabilityandDisclaimerofWarrantyofSoftwarexv1TheWirelessChannel:PropagationandFading11.1Large-ScaleFading41.1.1GeneralPathLossModel41.1.2Okumura/HataModel81.1.3IEEE802.16dModel101.2Small-ScaleFading151.2.1ParametersforSmall-ScaleFading151.2.2Time-Dispersivevs.Frequency-DispersiveFading161.2.3StatisticalCharacterizationandGenerationofFadingChannel192SISOChannelModels252.1IndoorChannelModels252.1.1GeneralIndoorChannelModels262.1.2IEEE802.11ChannelModel282.1.3Saleh-Valenzuela(S-V)ChannelModel302.1.4UWBChannelModel352.2OutdoorChannelModels402.2.1FWGNModel412.2.2JakesModel502.2.3Ray-BasedChannelModel542.2.4Frequency-SelectiveFadingChannelModel612.2.5SUIChannelModel653MIMOChannelModels713.1StatisticalMIMOModel713.1.1SpatialCorrelation733.1.2PASModel763.2I-METRAMIMOChannelModel843.2.1StatisticalModelofCorrelatedMIMOFadingChannel843.2.2GenerationofCorrelatedMIMOChannelCoefficients883.2.3I-METRAMIMOChannelModel903.2.43GPPMIMOChannelModel943.3SC妹妹IMOChannelModel973.3.1SCMLink-LevelChannelParameters983.3.2SCMLink-LevelChannelModeling1023.3.3SpatialCorrelationofRay-BasedChannelModel1054IntroductiontoOFDM1114.1Single-Carriervs.Multi-CarrierTransmission1114.1.1Single-CarrierTransmission1114.1.2Multi-CarrierTransmission1154.1.3Single-Carriervs.Multi-CarrierTransmission1204.2BasicPrincipleofOFDM1214.2.1OFD妹妹odulationandDemodulation1214.2.2OFDMGuardInterval1264.2.3OFDMGuardBand1324.2.4BERofOFDMScheme1364.2.5Water-FillingAlgorithmforFrequency-DomainLinkAdaptation1394.3CodedOFDM1424.4OFDMA:MultipleAccessExtensionsofOFDM1434.4.1ResourceAllocation–SubchannelAllocationTypes1454.4.2ResourceAllocation–Subchannelization1464.5Duplexing1505SynchronizationforOFDM1535.1Ef

华为olt5680t最新固件不提供技能支持

High-precisioninter-satellitereal-timerelativepositioningisakeytechniqueusedinsatelliteformationflying.AnadaptiveUKFmethodisproposedforascenarioofdouble-satelliteformationtodeterminatetheinter-satelliterelativepositionbasedonthemeasurementsofdual-frequencyP-codeanddual-frequencycarrierphaseofGPSandinter-satellitedistance.Simulationresultsshowthatthenewmethodmayimprovethefilteringstabilityandtheestimationprecisionofrelativeposition

MohinderS.Grewal的第三版GlobalNavigationSatelliteSystems,InertialNavigation,andIntegration[ISBN:978-1118447000]。
AnupdatedguidetoGNSS,andINS,andsolutionstoreal-worldGNSS/INSproblemswithKalmanfilteringWrittenbyrecognizedauthoritiesinthefield,thisthirdeditionofalandmarkworkprovidesengineers,computerscientists,andotherswithaworkingfamiliarityofthetheoryandcontemporaryapplicationsofGlobalNavigationSatelliteSystems(GNSS),InertialNavigationalSystems,andKalmanfilters.Throughout,thefocusisonsolvingreal-worldproblems,withanemphasisontheeffectiveuseofstate-of-the-artintegrationtechniquesforthosesystems,especiallytheapplicationofKalmanfiltering.Tothatend,theauthorsexplorethevarioussubtleties,co妹妹onfailures,andinherentlimitationsofthetheoryasitappliestoreal-worldsituations,andprovidenumerousdetailedapplicationexamplesandpracticeproblems,includingGNSS-aidedINS(tightlyandlooselycoupled),modelingofgyrosandaccelerometers,andSBASandGBAS.DrawingupontheirmanyyearsofexperiencewithGNSS,INS,andtheKalmanfilter,theauthorspresentnumerousdesignandimplementationtechniquesnotfoundinotherprofessionalreferences.TheThirdEditionincludes:UpdatesontheupgradesinexistingGNSSandothersystemscurrentlyunderdevelopmentExpandedcoverageofbasicprinciplesofantennadesignandpracticalantennadesignsolutionsExpandedcoverageofbasicprinciplesofreceiverdesignandanupdateofthefoundationsforcodeandcarrieracquisitionandtrackingwithinaGNSSreceiverExpandedcoverageofinertialnavigation,itshistory,itstechnology,andthemathematicalmodelsandmethodsusedinitsimplementationDerivationsofdynamicmodelsforthepropagationofinertialnavigationerrors,includingtheeffectsofdriftingsensorcompensationparametersGreatlyexpandedcoverageofGNSS/INSintegration,includingderivationofau

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。