Antenna'sArraySynthesis.zip

k3ng_antenna_tuner：基于Arduino的自动业余无线电天线调谐器

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.

经典书籍《天线》第三版的电子版，虽然不是特别清晰，但已是目前最清晰的资源了。
JohnD.Kraus

一本很不错的圆极化天线设计书籍，国内专门介绍圆极化天线的书籍不多，希望大家喜欢！

Sphericalnear-fieldantennameasurementsHansen,JesperEYear:1988Language:EnglishPages:387

弯折线单极子天线2.45GHz频段ANSYS仿真设计meanderlineantenna

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

对常用天线进行自动HFSS建模节省时间,ANSYSHFSSAntennaDesignKit2.15HFSS1415可以使用

5GNR:Architecture,Technology,Implementation,andOperationof3GPPNewRadioStandardsisanin-depth,systematic,technicalreferenceon3GPP'sNewRadiostandards(Release15andbeyond),coveringtheunderlyingtheory,functionaldescriptions,practicalconsiderationsandimplementationofthe5Gnewradioaccesstechnology.Thebookdescribesthedesignandoperationofindividualcomponentsandshowshowtheyareintegratedintotheoverallsystemandoperatefromasystemsperspective.Uniquely,thisbookgivesdetailedinformationonRANprotocollayers,transport,networkarchitectureandservices,aswellaspracticalimplementationanddeploymentissues,makingitsuitableforresearchersandengineerswhoaredesigninganddeveloping5Gsystems.Reflectingontheauthor's30plusyearsofexperienceinsignalprocessing,microelectronicsandwirelesscommunicationsystemdesign,thisbookisidealforprofessionalengineers,researchersandgraduatestudentsworkingandresearchingincellularcommunicationsystemsandprotocolsaswellasmobilebroadbandwirelessstandards.Strongfocusonpracticalconsiderations,implementationanddeploymentissuesTakesatop-downapproachtoexplainsystemoperationandfunctionalinterconnectionCoversallfunctionalcomponents,features,andinterfacesbasedonclearprotocolstructureandblockdiagramsDescribesRFandtransceiverdesignconsiderationsinsub-6GHzandmmWavebandsCoversnetworkslicing,SDN/NFV/MECnetworksandcloudandvirtualizedRANarchitecturesComprehensivecoverageofNRmulti-antennatechniquesandbeamformedoperationAconsistentandintegratedcoveragereflectingtheauthor’sdecadesofexperienceindeveloping3G,4Gand5Gtechnologiesandwritingtwosuccessfulbooksintheseareas

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。