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1、PrinciplesofNavalWeaponsSystemsEditedbyCDRJosephHall,USNIntroductionIntheearlytwentiethcentury,theinstrumentsofwarweresimplycalledweapons.Thecannon,therifle,orthebayonetwereallconsideredseparatepiecesofweaponrytobeusedincombat.BytheSecondWorldWar,technologybegantobeintegratedintocombat.Th
2、einventionofradarandsonarextendedthefieldofcombattogreaterandgreaterranges,anditwasnolongernecessarytosighttargetsdirectly.Astechnologyprogressed,theverynatureofweaponsalsochanged.Now,itisnolongersufficienttodiscussindividualpiecesofweaponry,theymustbetakeninthecontextoftheentireweaponssy
3、stem,whichisthecompletesetofinterrelatingpiecesthatfunctiontogethertoachievethegoalofdestroyingatarget.Thecompletedescriptionofaweaponssystemmustincludeallofthemeansofexchanginginformationbetweensub-systems,calledcommunicationsystems;allmeansusedtolocatethetarget,calledsensors;allmeansuse
4、dtostore,launchanddelivertheweapontothetarget,calleddeliverysub-systems;andallmeansusedtoinflictdamageuponthetarget,calleddestructionsub-systems.Inthisbook,wewilldiscusshowthevarioussub-systemsfunction.Thegoalistounderstandtheprinciplesofoperationofmanydifferentweaponssystems.Itisexpected
5、thatthereaderwillsupplementthismaterialwithoneofthemanyfinebooksdescribingthearsenalofweaponscurrentlyinusebythemajormilitariesoftheworld.Tounderstandhowacomplicateddevicesuchasaweaponssystemworks,itisoftenhelpfultoperformsomelevelofabstractionfirst.Insomeways,thisisalsohowweaponssystemsa
6、redesigned.Theabstractionissimplytoaskwhataretheinputsandoutputs?Thisquestioncanbeappliedatmanydifferentlevels.Toillustratethisconcept,considertheoverallweaponssystem.Theinputscomefromthetargetand/oranoperator.Theoutputisthedestructiveforcethatdamagesthetarget.Atthenextlevelofabstraction,
7、therolesofthemajorsub-sectionscanbeprescribed.Thesensorsub-sectiontakesthesignalsfromthetargetandoutputsthelocationanddirectionofmovementofthetargettothedeliverysystem.Thedeliverysystemsoutputistoputtheweaponincloseproximitytothetarget.Finally,givensomesmallseparati
