工学部_研究紹介_2020_英語版

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Manypeopleareusingwirelesscommunicationservicessuchascellular-phone/smartphonecommunications,terrestrialdigitalbroadcasting,andwirelessLAN(Wi-Fi)onadailybasis.Theseservicesaresupportedbymanywirelesstechnologiessuchasspreadspectrum,OFDManddiversitycombining.Inthislab,wetheoreticallyinvestigatetheperformancesofthosetechnologiesinordertorealizeanewwirelesscommunicationsystemwithusabilityandefficiency.Cellular-phones/smartphonescommunication,terrestrialdigitalbroadcastingandwirelessLANservicesrequirehigh-speed(broadband)wirelesschannelsandexclusiveterminals.However,atrackingsystemforchildren’ssecurity/safetyandanautomaticmeteringsystemforelectricity/gas/waterdon’trequirethem.Wetakeatheoreticalapproachtoexploreawirelesssystemthatusesalow-speedchannelsuchasafree-ofchargevoicechannel,asitconsumeslessenergy,thusischeaperandalsoiseasiertouse,ProfessorReceivedDr.Eng.degreefromWasedaUniv.in2000.ResearchAssociatesince2000andAssociateProf.since2006withShinshuUniv.Researchinterestsincludedigitalmobilecommunicationssystems.We design and implement an OFDM digital signal processing on a microcontroller over voice grade analog channels.Theoretical Approach to Realize WirelessCommunication with Usability and EfficiencyIn order to simulate wireless systems, we build a PC cluster with which many PCs can be virtually viewed as a high spec computer.Wirelesscommunicationengineersareinhighdemandinnumerouscompaniessuchastele-communicationscarriers,railwaycompanies,electricpowercompanies,andelectricalmanufacturers.Wirelesstechnologiescanbeappliedinvariousfieldsofengineering,sosomegraduateschangetheircareersforcareerenhancement.FumihitoSasamoriIn the FutureAfter GraduationElectrical& Computer EngineeringElectrical& Computer EngineeringIn the FutureAfter GraduationSiC/GaNpowerdeviceswithverylowon-resistanceandveryhighspeedswitchingenabletorealizecompact,lightweightandhighly-efficientpowersupplysystemsbyincreasingoperationfrequency.Forfurtherprogress,theinnovativelowlossmagneticmaterialsanddevicesmustbedeveloped.Asanapproachaimedtorealizealowcarbonsociety,effortsforefficientuseofelectricenergyarebeingpromoted.Thepowerelectronicssystemsarewidelyusedinthehugepowergrid.However,themagneticdevicesarecurrentlyaseriousbottleneckinrealizingcompact/lightweight/highly-efficientSiC/GaNbasedpowerelectronicssystems.Inourlaboratory(AssociateProfessorMakotoSoneharaandI),R&Dsontheinnovativelowlossmagneticmaterialsanddevicesforhighfrequencypowerconversionarenowbeinginprogress.ThreenationalprojectsarenowbeenpromotedcollaboratingwithMizuno’slaboratoryatsamedepartmentandFunaki’slaboratoryatOsakaUniversity.WiththespreadofAIandIoTthroughouttheworld,itispredictedthathugeamountsofelectricenergywillberequired.Asanapproachtomaintainasustainablesociety,novelpowerelectronicstechnologyforhighly-efficientutilizationofelectricenergywillbecomeincreasinglyimportantinthefuture.Themagneticmaterial/devicedevelopmentandtheirapplicationtovariouspowerelectronicssystemsarepromotedinourlaboratory,andthelaboratorystudentscanacquirediverseskills.Graduatesareactiveinawidevarietyoffields,includingelectronicsmanufacturers,electroniccomponentmanufacturers,electricpowercompany,railwaycompany,andresearchinstitutes.Professor1989;CompletedDoctoralprogramatgraduateschoolofScienceandTechnology,ChibaUniversity1989-1996；TOSHIBACorp.1996；AssociateProfessor,ShinshuUniversity2005；ProfessorResearchField;Magneticmaterials/devices/sensorsandtheirapplicationsToward Low-Carbon Society！R&Ds on the Highly-efficient Power MagneticsToshiro SatoMagnetizationmeasurementforthefabricatedmagneticmaterialsusingVSMLaboratory seminarWinter seminar25