IEC 60107-2-1997 Methods of measurement on receivers for television broadcast transmissions - Part 2 Audio channels - General methods and methods for monophonic.pdf

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1、NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 601072 Deuximedition Secondedition 199702 Numroderfrence Referencenumber CEI/IEC601072:1997 Mthodesdemesureapplicables auxrcepteursdetlvision Partie2: Voiesson Mthodesgnralesetmthodes pourvoiesmonophoniques Methodsofmeasurementon receiversfortelevi

2、sionbroadcast transmissions Part2: Audiochannels Generalmethodsandmethods formonophonicchannelsValiditdelaprsentepublication LecontenutechniquedespublicationsdelaCEIestcons tammentrevuparlaCEIafinquilreflteltatactuelde latechnique. Desrenseignementsrelatifsladatedereconfirmationde lapublicationsontd

3、isponiblesauprsduBureauCentralde laCEI. Lesrenseignementsrelatifscesrvisions,ltablis sementdesditionsrvisesetauxamendementspeuvent treobtenusauprsdesComitsnationauxdelaCEIet danslesdocumentscidessous: BulletindelaCEI AnnuairedelaCEI Publiannuellement CataloguedespublicationsdelaCEI Publiannuellement

4、etmisjourrgulirement Terminologie Encequiconcernelaterminologiegnrale,lelecteurse reporteralaCEI50:VocabulaireElectrotechniqueInter national(VEI),quiseprsentesousformedechapitres sparstraitantchacundunsujetdfini.Desdtails completssurleVEIpeuventtreobtenussurdemande. Voirgalementledictionnairemultili

5、nguedelaCEI. Lestermesetdfinitionsfigurantdanslaprsentepubli cationonttsoittirsduVEI,soitspcifiquement approuvsauxfinsdecettepublication. Symbolesgraphiquesetlittraux Pourlessymbolesgraphiques,lessymboleslittrauxetles signesdusagegnralapprouvsparlaCEI,lelecteur consultera: laCEI27: Symboleslittrauxu

6、tiliseren lectrotechnique; laCEI417: Symbolesgraphiquesutilisables surlematriel.Index,relevetcompilationdes feuillesindividuelles; laCEI617: Symbolesgraphiquespourschmas; etpourlesappareilslectromdicaux, laCEI878: Symbolesgraphiquespour quipementslectriquesenpratiquemdicale. Lessymbolesetsignesconte

7、nusdanslaprsentepubli cationonttsoittirsdelaCEI27,delaCEI417,dela CEI617et/oudelaCEI878,soitspcifiquementapprouvs auxfinsdecettepublication. PublicationsdelaCEItabliesparle mmecomitdtudes Lattentiondulecteurestattiresurleslistesfigurantlafin decettepublication,quinumrentlespublicationsdela CEIprpare

8、sparlecomitdtudesquiatablila prsentepublication. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunder constantreviewbytheIEC,thusensuringthatthecontent reflectscurrenttechnology. Informationrelatingtothedateofthereconfirmationofthe publicationisavailablefromtheIECCentralOffice.

9、Informationontherevisionwork,theissueofrevised editionsandamendmentsmaybeobtainedfromIEC NationalCommitteesandfromthefollowingIEC sources: IECBulletin IECYearbook Publishedyearly CatalogueofIECpublications Publishedyearlywithregularupdates Terminology Forgeneralterminology,readersarereferredtoIEC50:

10、 InternationalElectrotechnicalVocabulary (IEV),whichis issuedintheformofseparatechapterseachdealing withaspecificfield.FulldetailsoftheIEVwillbe suppliedonrequest.SeealsotheIECMultilingual Dictionary. Thetermsanddefinitionscontainedinthepresentpubli cationhaveeitherbeentakenfromtheIEVorhavebeen spec

11、ificallyapprovedforthepurposeofthispublication. Graphicalandlettersymbols Forgraphicalsymbols,andlettersymbolsandsigns approvedbytheIECforgeneraluse,readersarereferredto publications: IEC27: Lettersymbolstobeusedinelectrical technology; IEC417: Graphicalsymbolsforuseon equipment.Index,surveyandcompi

12、lationofthe singlesheets; IEC617: Graphicalsymbolsfordiagrams; andformedicalelectricalequipment, IEC878:Graphicalsymbolsforelectromedical equipmentinmedicalpractice. Thesymbolsandsignscontainedinthepresentpublication haveeitherbeentakenfromIEC27,IEC417,IEC617 and/orIEC878,orhavebeenspecificallyappro

13、vedforthe purposeofthispublication. IECpublicationspreparedbythesame technicalcommittee Theattentionofreadersisdrawntotheendpagesofthis publicationwhichlisttheIECpublicationsissuedbythe technicalcommitteewhichhaspreparedthepresent publication.NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 60107

14、2 Deuximedition Secondedition 199702 Mthodesdemesureapplicables auxrcepteursdetlvision Partie2: Voiesson Mthodesgnralesetmthodes pourvoiesmonophoniques Methodsofmeasurementon receiversfortelevisionbroadcast transmissions Part2: Audiochannels Generalmethodsandmethods formonophonicchannels U Pourprix,

15、voircatalogueenvigueur Forprice,seecurrentcatalogue CODEPRIX PRICECODE IEC1997Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteniut ilise sousquelqueformequecesoitetparaucunprocd,lectronique oumcanique,ycomprislaphotocopieetlesmicrofilms,sans lac

16、cordcritdelditeur. Nopartofthispublicationmaybereproducedorut ilizedin anyformorbyanymeans,electronicormechanical,including photocopyingandmicrofilm,withoutpermissioninwritingfrom thepublisher. InternationalElectrotechnicalCommission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmaili

17、ec.ch IECwebsitehttp:/www.iec.ch CommissionElectrotechniqueInternationale InternationalElectrotechnicalCommission2 601072 CEI:1997 SOMMAIRE Pages AVANTPROPOS. . 6 Articles 1 Gnralits . 8 1.1Domaine dapplication 8 1.2Rfrences normatives 8 1.3Dfinitions 10 1.3.1Voie son 10 2 Notesgnralessurlesmesures.

18、 1 0 2.1Conditions gnrales. 10 2.2 Signaldentreaudiofrquence . 10 2.2.1 Frquencederfrencenormalise. 10 2.2.2 Audiofrquencesutilisespourlesmesures 10 2.3 Signaldetlvisionradiofrquence(RF). 12 2.3.1 Niveauxdeporteuse. 12 2.3.2 Facteurdemodulation 12 2.3.3 Facteurdemodulationderfrence. 12 2.4 Signauxde

19、ntreradiofrquences . 12 2.5 Bancdemesureetinstrumentationassocie 12 2.5.1Filtres audio 14 2.5.2 Analyseurdespectreaudiofrquence 14 2.5.3Voltmtre audio. 14 2.5.4 Psophomtre(mesureurdebruitpondr) 14 2.6 Conditionsnormalisesdemesures 14 2.6.1 SignalRFdetlvisionnormalis 14 2.6.2 Niveauxnormalissdusignal

20、dentreRF . 16 2.6.3 Puissanceettensiondesortienormalises . 16 2.6.4 Conditionsnormalisesderglagesdurcepteurdetlvision 16 2.7 Mthodesgnralesdemesure 18 3 Puissancedesortieaudiofrquence . 18 3.1Dfinition. . 18 3.2 Chargedesubstitutionenaudiofrquence 20 3.3 Mesuredelapuissancedesortieaudiofrquence 20 4

21、Caractristiques audiofrquence 20 4.1Rponse amplitudeaudiofrquence 20 4.1.1 Courbederponseaudiofrquence . 20 4.1.2 Caractristiquesdurglagedetonalitouducorrecteur. 22 4.1.3 Caractristiquesdurglagedintensitsonore. 22 4.1.4 Caractristiquesderglagedegain. 24 4.2 Distorsionnonlinaireenaudiofrquence. 24 4.

22、2.1Introduction. 24 4.2.2 Distorsionharmoniquetotale 24 4.2.3Intermodulation. 26601072IEC:1997 3 CONTENTS Page FOREWORD . 7 Clause 1General . 9 1.1Scope . 9 1.2Normative references. 9 1.3Definitions 11 1.3.1Audio channel. 11 2 Generalnotesonmeasurements. 11 2.1General conditions. 11 2.2 Audiofrequen

23、cyinputsignal 11 2.2.1 Standardreferencefrequency 11 2.2.2 Audiofrequenciesformeasurements 11 2.3 Radiofrequency(r.f.)televisionsignal. 13 2.3.1Carrier levels. 13 2.3.2Modulation factor 13 2.3.3 Referencemodulationfactor 13 2.4 Radiofrequencyinputsignals 13 2.5 Measuringsystemandtestinstruments 13 2

24、.5.1Audio filters. 15 2.5.2 Audiofrequencyspectrumanalyzer . 15 2.5.3Audio voltmeter. 15 2.5.4 Psophometer(weightednoisemeter). 15 2.6 Standardmeasuringconditions . 15 2.6.1 Standardr.f.televisionsignal 15 2.6.2 Standardr.f.inputsignallevels. 17 2.6.3 Standardoutputpowerandvoltage 17 2.6.4 Standardr

25、eceiversettings 17 2.7 Generalmethodsofmeasurement 19 3 Audiofrequencyoutputpower1 9 3.1Definition. . 19 3.2Audiofrequency substitute load. 21 3.3 Measurementofaudiofrequencyoutputpower 21 4Audiofrequency characteristics .2 1 4.1 Amplituderesponsetoaudiofrequencies. 21 4.1.1 Audiofrequencyresponsech

26、aracteristics 21 4.1.2 Characteristicsoftonecontrolorequalizer 23 4.1.3 Characteristicsofloudnesscontrol. 23 4.1.4 Volumecontrolcharacteristic . 25 4.2 Audiofrequencynonlineardistortion 25 4.2.1Introduction. 25 4.2.2 Totalharmonicdistortion 25 4.2.3Intermodulation. 274 601072 CEI:1997 Articles Pages

27、 5Perturbations internes. . 28 5.1Grsillement. 28 5.1.1Dfinition. 28 5.1.2 Mthodedemesure 28 5.1.3 Prsentationdesrsultats 28 5.2Ronflement. 30 5.2.1Dfinition. 30 5.2.2 Mthodedemesure 30 5.2.3 Prsentationdesrsultats 30 5.3 Perturbationsdueslafrquencedebalayagedeligne . 30 5.3.1Dfinition. 30 5.3.2 Mth

28、odedemesure 30 5.4 Rapportdesuppressiondelamodulationdamplitude 32 5.4.1Dfinition. 32 5.4.2 Mthodedemesure 32 5.4.3 Prsentationdesrsultats 32 6Sensibilit . 34 6.1 Rapportsignalbruit. 34 6.1.1Dfinition. 34 6.1.2 Mthodedemesure 34 6.1.3 Prsentationdesrsultats 34 6.2 Rapportsignalbruitultime 36 6.2.1Df

29、inition. 36 6.2.2 Mthodedemesure 36 6.3 Sensibilitlimiteparlebruit . 36 6.3.1Dfinition. 36 6.3.2 Mthodedemesure 36 6.3.3 Prsentationdesrsultats 36 7 Immunitauxsignauxindsirables 36 7.1Introduction. . 36 7.2 Mthodesdemesuredebase . 38 7.2.1 Montagedemesure 38 7.2.2 Procduredemesure . 38 7.3 Prsentati

30、ondesrsultats 40 Tableau 1Frquences prfrentielles. .42 Figures 1 Filtrepassebande200Hz15kHz. 4 4 2 Filtrepassebande22,4Hz15kHz 4 4 3 Mesuredurapportdesuppressiondelamodulationdamplitude . 46 4 Mesuredurapportsignalbruit . 46 5 MesuredurapportsignalRFutileperturbateur. 48 Annexe ABibliographie 506010

31、72IEC:1997 5 Clause Page 5 Internallygeneratedinterference 29 5.1Buzz. 29 5.1.1Definition. 29 5.1.2 Methodofmeasurement. 29 5.1.3 Presentationofresults 29 5.2Hum 31 5.2.1Definition. 31 5.2.2 Methodofmeasurement. 31 5.2.3 Presentationofresults 31 5.3 Linescanfrequencyinterference. 31 5.3.1Definition.

32、 31 5.3.2 Methodofmeasurement. 31 5.4 Amplitudemodulationsuppressionratio 33 5.4.1Definition. 33 5.4.2 Methodofmeasurement. 33 5.4.3 Presentationofresults 33 6Sensitivity . 35 6.1Signaltonoise ratio.3 5 6.1.1Definition. 35 6.1.2 Methodofmeasurement. 35 6.1.3 Presentationofresults 35 6.2 Ultimatesign

33、altonoiseratio 37 6.2.1Definition. 37 6.2.2 Methodofmeasurement. 37 6.3Noiselimited sensitivity 37 6.3.1Definition. 37 6.3.2 Methodofmeasurement. 37 6.3.3 Presentationofresults 37 7 Immunitytoundesiredsignals 37 7.1Introduction. . 37 7.2 Basicmethodofmeasurement 39 7.2.1Measurement setup. 39 7.2.2Me

34、asurement procedure 39 7.3 Presentationofresults . 4 1 Table 1 Preferredfrequencies. . 43 Figures 1 200Hzto15kHzbandpassfilter 45 2 22,4Hzto15kHzbandpassfilter . 45 3 Measurementofamplitudemodulationsuppressionratio . 47 4 Measurementofsignaltonoiseratio . 4 7 5 Measurementofwantedtounwantedr.f.sign

35、alratio 49 Annex ABibliography. 516 601072 CEI:1997 COMMISSIONLECTROTECHNIQUEINTERNATIONALE _ MTHODESDEMESUREAPPLICABLES AUXRCEPTEURSDETLVISION Partie2:Voiesson Mthodesgnralesetmthodespourvoiesmonophoniques AVANTPROPOS 1) LaCEI(CommissionElectrotechniqueInternationale)estuneorganisationmondialedenor

36、malisationcompose delensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCEIapourobjetde favoriserlacooprationinternationalepourtouteslesquestionsdenormalisationdanslesdomainesde llectricitetdellectronique.Aceteffet,laCEI,entreautresactivits,publiedesNormesInternationales. Leurlabor

37、ationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparle sujettraitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,en liaisonaveclaCEI,participentgalementauxtravaux.LaCEIcollaboretroitementaveclOrganisation InternationaledeNormalisation(ISO),

38、selondesconditionsfixesparaccordentrelesdeuxorganisations. 2) LesdcisionsouaccordsofficielsdelaCEIconcernantlesquestionstechniques,reprsentent,danslamesure dupossibleunaccordinternationalsurlessujetstudis,tantdonnquelesComitsnationauxintresss sontreprsentsdanschaquecomitdtudes. 3) Lesdocumentsprodui

39、tsseprsententsouslaformederecommandationsinternationales.Ilssontpublis commenormes,rapportstechniquesouguidesetagrscommetelsparlesComitsnationaux. 4) Danslebutdencouragerlunificationinternationale,lesComitsnationauxdelaCEIsengagentappliquerde faontransparente,danstoutelamesurepossible,lesNormesinter

40、nationalesdelaCEIdansleursnormes nationalesetrgionales.ToutedivergenceentrelanormedelaCEIetlanormenationaleourgionale correspondantedoittreindiqueentermesclairsdanscettedernire. 5) LaCEInafixaucuneprocdureconcernantlemarquagecommeindicationdapprobationetsaresponsabilit nestpasengagequandunmatrielest

41、dclarconformelunedesesnormes. 6) LattentionestattiresurlefaitquecertainsdeslmentsdelaprsenteNormeinternationalepeuventfaire lobjetdedroitsdepropritintellectuelleoudedroitsanalogues.LaCEInesauraittretenuepour responsabledenepasavoiridentifidetelsdroitsdepropritetdenepasavoirsignalleurexistence. LaNor

42、meinternationaleCEI601072attablieparlesouscomit100A:Matriels rcepteurs,ducomitdtudes100delaCEI:Systmesetappareilsaudio,vidoet multimdia. Cettesecondeditionannuleetremplacelapremireditionparueen1980etconstitueune rvisiontechnique. CettepartiedelaCEI60107doittreutiliseconjointementaveclaCEI601071. Letextedecettenormeestissudesdocumentssuivants: FDIS Rapportdevote 100A/22/FDIS 100A/41/RVD Lerapportdevoteindiqudansletableaucidessusdonnetouteinformationsurlevoteayant aboutilapprobationdecettenorme. LannexeAestdonneuniquementtitredinformation.601072IEC:1997 7 INTERNAT