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1、ARTICLEINPRESSPlanetaryandSpaceScience54(2006)441–455www.elsevier.com/locate/pssThemagnetic?eldexperimentIMSCanditsdataprocessingonboardDEMETER:Scienti?cobjectives,descriptionand?rstresultsa,bcdbaaM.Parrot,D.Benoist,J.J.Berthelier,J.B"ecki?,Y.Chapuis,F.Colin,F.
2、Elie,aaaaaaP.Fergeau,D.Lagoutte,F.Lefeuvre,C.Legendre,M.Le′ve?que,J.L.Pinc-on,aaaB.Poirier,H.-C.Seran,P.ZamoraaLPCE/CNRS,3AAvenuedelaRechercheScienti?que,45071Orle′anscedex2,FrancebStationderadioastronomiedeNanc-ay18330Nanc-ay,FrancecCETP,ObservatoiredeSaintMaur
3、,4AvenuedeNeptune,94107SaintMaurdesFosse′scedex,FrancedSpaceResearchCentrePAS,Bartycka18A,00-716Warsaw,PolandReceived10December2004;receivedinrevisedform12April2005;accepted14October2005Availableonline24March2006AbstractThispaperisrelatedtothepresentationofthema
4、gnetic?eldexperimentIMSC,andtothedescriptionoftheelectronicblocknamedBANTonboardthemicro-satelliteDEMETER.Themainscienti?cobjectiveoftheDEMETERmissionisrelatedtothestudyoftheionosphericperturbationsinrelationwiththeseismicandvolcanicactivities.Thereareseveralhyp
5、othesestoexplaintheseionosphericperturbationsandonegoalistounderstandtherightgenerationmechanism.Thesamescienti?cpayloadwillallowustostudytheionosphericperturbationsinrelationwiththeanthropogenicactivities.Intotal,DEMETERwillperformacomprehensivestudyoftheEarthe
6、lectromagneticenvironmentatthealtitudeofthesatellite.OnboardDEMETER,allscienti?cexperimentsare?rstprocessedbytheelectronicmoduleBANTwhichisconnectedtoanonboardmemory.ThefunctionsofBANTwillbedescribed,andthe?rstresultsofIMSCwillbepresented.r2006ElsevierLtd.Allrig
7、htsreserved.Keywords:Electromagneticwaves;Ionosphere;Seismicactivity1.Introductionbecausetheyoccurbetweenafewhoursandafewdaysbeforetheshock,andthen,theycanbeconsideredasshort-Themainscienti?cobjectivesoftheDEMETERtermprecursors.Buttheproblemofelectromagneticeffe
8、ctsexperimentsaretostudythedisturbancesoftheionospherecorrelatedwithearthquakesiscomplex,notonlybecauseduetotheseismo-electromagneticeffects,andduetothegenerationmech
