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1、2009FifthInternationalConferenceonMEMSNANO,andSmartSystemsPerformanceofDifferentTypesofArrayStructuresBasedonMultipleSignalClassification(MUSIC)algorithmRameshwarKawitkarProfessorinE&TCEngineering.SinhgadCollegeofEngineeringVadgaon(Bk),Pune-41,Indiarskawitkar@rediffmail.comAbstract—Smart
2、antennasystemsarerapidlyemergingasantennahasbecomeafeasiblesystemtodesignandoneofthekeytechnologiesthatcanenhanceoverallwirelessimplement.communicationssystemperformance.BymakinguseoftheUntilnow,theinvestigationofsmartantennassuitableforspatialdimension,anddynamicallygeneratingadaptivewi
3、relesscommunicationsystemshasinvolvedprimarilyreceiveandtransmitantennapatterns,asmartantennacanuniformlineararrays(ULA).Differentalgorithmshavegreatlyreduceinterference,increasethesystemcapacity,beenproposedfortheestimationofthedirectionofarrivalsincreasepowerefficiencyaswellasreduceove
4、rall(DOAs)ofsignalsarrivingtothearrayandseveraladaptiveinfrastructurecosts.Here,theperformanceofsmartantennaswithuniformlineartechniqueshavebeenexaminedfortheshapingofthearrays(ULA),uniformcirculararrays(UCA)anduniformradiationpatternunderdifferentconstraintsimposedbytherectangulararrays
5、(URA)isexaminedandcomparedusingwirelessenvironment.Furthermore,intheliteratureforMUSICalgorithm.adaptiveantennassofar,littleattentionhasbeenpaidtootherarraytopologies.Keywords--Smartantennas,DOAEstimation,UniformlinearHereithasbeentriedtoinvestigatethreedifferenttypes:arrays(ULA),Uniform
6、circulararrays(UCA),Uniformuniformlineararrays(ULA),uniformcirculararrays(UCA)rectangulararrays(URA),MultipleSignalClassificationanduniformrectangulararrays(URA).Thekeycomponent(MUSIC).ofsmartantennatechnologyexaminedhereisdirectionofarrival(DOA)estimation.ItisfeasibletodeterminetheI.INT
7、RODUCTIONanglesfromwhichsourcestransmitsignalstowardsanOverthelastfewyears,therehasbeenanincreasingantennaarray.MUSICalgorithmforDOAestimationisdemandforbetterqualityandnewvalue-addedservicesonconsideredhere.existingwirelessmobilecommunicationsnetworks.ThisSIGNALMODEL:dem
