innovations in naval technology during world war ii

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1、NavalTechnologicalInnovationsofWorldWarIIOmerTolgaInanMarch,2004EE45:FinalProject24Contents1.Foreword32.BriefHistoryofNavalTechnology42.1TheDawnofRadioCommunication42.2EarlyVacuumTubeEquipmentandtheEraPrecedingTransistors4-52.3AircraftTransmittersandReceiver

2、s:RadiointheSky53.NavalTechnologicalInnovationsoftheSecondWorldWar6-123.1TheArtofUnderwaterCommunications6-83.1.1BriefIntroductiontoElectromagneticWaveTheory3.1.2ElectromagneticCharacteristicsandCalculationsforSeawater3.1.3Goliath:AWorldWarIIVLFTransmitter3.

3、2TechniquesforSpatialLocalizingofSubmarines9-123.2.1HighFrequencyDirectionFinding3.2.2UnderwaterUltrasonicSoundDetection243.3AdvancesinSubmarinePowerManagement124.SubmarineTechnologyToday135.WorksCited13241.ForewordTheSecondWorldWarmarkedthebirthofmoderndayt

4、echnologicalwarfare;innovationsofwell-educatedscientistsandengineerstrumpedthebrutepowerofwell-trained,disciplinedtroops.Amongthemostvitaloftheseinnovationswerethosespearheadingtheadvancementofsubmarinetechnologyinthecriticalquestforcontrolofthesub-Atlantic:

5、discoveriesinverylowfrequency(VLF)transmissionallowedforsubmarinetosubmarine,shoretosubmergedsubmarineandsubmergedsubmarinetoshorecommunication;novelhighfrequencydirectionfinding(HF/DF)andultrasonic/radiodetectionmethodsprovidedaccelerated,accuratespatialloc

6、alizingofsubmarines;andsignificantrevelationsinshipboardbatterypowermanagementgreatlyincreasedthemaximumtimedurationforwhichsubmarinescouldremainsubmerged.Theconjunctionofthesediscoveriesincommunication,localization,andpowermanagementcoinedamuchmoreeffective

7、24andpowerfulmeansofunderwaterwarfarewhichwasunimaginablepriortoWorldWarII.Thisreportsuppliesabriefhistoryofnavaltechnology,adescriptionofeachoftheseimportantadvancesinthewarofthesub-Atlanticand,introducessomeaspectsofmoderndaynavalcommunicationsystems.242.B

8、riefHistoryofNavalTechnologyTheearlypartofthe20thcenturywaslacedwithimportantnavaltechnologicaladvancementsinseveralfieldsincludingtheinductionofshipboardradiocommunicationsystems,inventionandpr