Çokyollu ortamda çapraz belirsizlik işlevi-yön bulma tekniğinin başarım analizi

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buir.contributor.authorArıkan, Orhan
buir.contributor.orcidArıkan, Orhan|0000-0002-3698-8888
dc.citation.epage4en_US
dc.citation.spage1en_US
dc.contributor.authorGüldoǧan, Mehmet Buraken_US
dc.contributor.authorArıkan, Orhanen_US
dc.coverage.spatialAydın, Turkey
dc.date.accessioned2016-02-08T11:36:59Z
dc.date.available2016-02-08T11:36:59Z
dc.date.issued2008-04en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionDate of Conference: 20-22 April 2008
dc.descriptionConference name: IEEE 16th Signal Processing, Communication and Applications Conference, SIU 2008
dc.description.abstractBu bildiride, Çapraz Belirsizlik İşlevi-Yön Bulma (CAFDF) tekniğinin çokyollu ortamlardaki sinyallerin zaman gecikmesi, Doppler kayması, geliş yönü(GY) ve genlik kestirimindeki başarımı ile yiiksek çözünürlüklü algoritmalar olan Uzay-Almaşan Genelleşmiş Beklenti-Enbüyüitme (SAGE) ve Çoklu Sinyal Sınıflandırılması(MUSIC)'in sentetik sinyaller iizerindeki başarımları kıyaslanmıştır. Algoritmalann performansları, kök Ortalama Karesel Hata (kOKH) cinsinden degişik işaret Gürültü Oranı (iGO) değerlerinde Monte Carlo denemelerine dayalı olarak sunulmuştur. Sentetik kanallarda istatiksel kıyaslama amaçlı Cramer-Rao alt sınırları eklenmiştir. Simülasyon sonuçları göstermektedir ki, orta ve düşük iGO değerlerinde CAF-DF diğer iki algoritmaya göre üstünlük sağlamaktadır.
dc.description.abstractIn this paper, recently proposed Cross Ambiguity Function Direction Finding (CAF-DF) array signal processing technique, which make use of the cross ambiguity function calculation, is compared with the MUltiple SIgnal Classification (MUSIC) and Space Alternating Generalized Expectation Maximization (SAGE) techniques. The CAF-DF estimates direction of arrival (DOA), time delay, Doppler shift and amplitude corresponding to each impinging signal onto a sensor array in an iterative manner. Performances of the algorithms are tested on synthetic signals in terms of root Mean Squared Error (rMSE) for different Signal-to-Noise Ratio (SNR) values based on Monte Carlo trials. For statistical comparisons Cramer-Rao lower bound is included. Obtained results show that CAF-DF technique is superior to its alternatives for medium and low SNR values. ©2008 IEEE.
dc.description.provenanceMade available in DSpace on 2016-02-08T11:36:59Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2008en
dc.identifier.doi10.1109/SIU.2008.4632672en_US
dc.identifier.urihttp://hdl.handle.net/11693/26826
dc.language.isoTurkishen_US
dc.publisherIEEE
dc.relation.isversionofhttp://dx.doi.org/10.1109/SIU.2008.4632672en_US
dc.source.titleIEEE 16th Signal Processing, Communication and Applications Conference, SIU 2008en_US
dc.subjectArray signal processing techniquesen_US
dc.subjectCross ambiguity functionsen_US
dc.subjectDf techniquesen_US
dc.subjectDirection findingsen_US
dc.subjectDoppler shiftsen_US
dc.subjectGeneralized expectation maximizationsen_US
dc.subjectImpinging signalsen_US
dc.subjectLow snren_US
dc.subjectLower boundsen_US
dc.subjectMonte Carlo trialsen_US
dc.subjectMultipath environmentsen_US
dc.subjectMultiple Signal classificationsen_US
dc.subjectPerformance analysesen_US
dc.subjectRoot mean squared errorsen_US
dc.subjectSignal-to-Noise ratiosen_US
dc.subjectSpace alternatingen_US
dc.subjectStatistical comparisonsen_US
dc.subjectSynthetic signalsen_US
dc.subjectTime- delaysen_US
dc.subjectAcoustic intensityen_US
dc.subjectControl theoryen_US
dc.subjectCramer-Rao boundsen_US
dc.subjectDirection of arrivalen_US
dc.subjectFluorescenceen_US
dc.subjectProbability density functionen_US
dc.subjectRadio direction finding systemsen_US
dc.subjectRoom and pillar miningen_US
dc.subjectSemanticsen_US
dc.subjectSignal filtering and predictionen_US
dc.subjectSignal processingen_US
dc.subjectWavelet analysisen_US
dc.subjectWireless telecommunication systemsen_US
dc.subjectSignal to noise ratioen_US
dc.titleÇokyollu ortamda çapraz belirsizlik işlevi-yön bulma tekniğinin başarım analizien_US
dc.title.alternativePerformance analysis of cross ambiguity function-Direction finding technique in multipath environmentsen_US
dc.typeConference Paperen_US

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