Ellipsoid genişletmeyle seyrek sinyal geri oluşturma
buir.contributor.author | Arıkan, Orhan | |
buir.contributor.orcid | Arıkan, Orhan|0000-0002-3698-8888 | |
dc.citation.epage | 796 | en_US |
dc.citation.spage | 793 | en_US |
dc.contributor.author | Gürbüz, A. C. | en_US |
dc.contributor.author | Pilancı, M. | en_US |
dc.contributor.author | Arıkan, Orhan | en_US |
dc.coverage.spatial | Antalya, Turkey | |
dc.date.accessioned | 2016-02-08T12:19:10Z | |
dc.date.available | 2016-02-08T12:19:10Z | |
dc.date.issued | 2011-04 | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.description | Date of Conference: 20-22 April 2011 | |
dc.description | Conference name: 2011 IEEE 19th Signal Processing and Communications Applications Conference (SIU) | |
dc.description.abstract | Bu makalede b = Ax + n şeklinde gürültülü A’nın tam rank ve x’in seyrek olduğu doğrusal bir denklem sistemi için seyrek x sinyallerini doğru olarak geri oluşturmaya yönelik yeni bir yöntem sunulmuştur. Önerilen yöntem kullanılan veri sınırını belirleyen ||Ax − b||2 = ellipsoidinin genişletilirken sırayla eksenlerin sıfırlanmasına dayanan yinelemeli bir yöntemdir. Seyrek sinyal oluşturma alanında yinelemeli ve 1 norm minimizasyon tabanlı standard yöntemlere göre benzer problemlerde daha yüksek başarım gösteren metot, eksik belirtilmiş sistemlerde standard metotların oluşturması gereken seyreklik seviyesini de yumuşatmaktadır | en_US |
dc.description.abstract | In this work a novel method for reconstructing sparse x in a noisy full rank linear system such as b = Ax + n is developed. The proposed method depends on enlarging the ellipsiod defined by the data constraint ||Ax−b||2 = and iteratively resetting the axes where the signal is zero. The proposed method has a higher reconstruction performance compared to standard iterative and 1 norm minimization based sparse recovery methods. Also our method relaxes the sparsity level constraint to be reconstructed by the standard methods for an underdetermined system. | en_US |
dc.description.provenance | Made available in DSpace on 2016-02-08T12:19:10Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2011 | en |
dc.identifier.doi | 10.1109/SIU.2011.5929771 | en_US |
dc.identifier.uri | http://hdl.handle.net/11693/28382 | |
dc.language.iso | Turkish | en_US |
dc.publisher | IEEE | |
dc.relation.isversionof | http://dx.doi.org/10.1109/SIU.2011.5929771 | en_US |
dc.source.title | 2011 IEEE 19th Signal Processing and Communications Applications Conference, SIU 2011 | en_US |
dc.subject | Data constraints | en_US |
dc.subject | Novel methods | en_US |
dc.subject | Sparse recovery | en_US |
dc.subject | Sparse signal reconstruction | en_US |
dc.subject | Standard method | en_US |
dc.subject | Linear systems | en_US |
dc.subject | Signal reconstruction | en_US |
dc.title | Ellipsoid genişletmeyle seyrek sinyal geri oluşturma | en_US |
dc.title.alternative | Sparse signal reconstruction with ellipsoid enlargement | en_US |
dc.type | Conference Paper | en_US |
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