Publication: Mükemmel Manyettik İletken Yüzeylerin Tek Frekansta Tek Ölçüm Verisiyle Görüntülenmesi
Loading...
Files
Date
Authors
Advisor
Department
Telekomünikasyon Mühendisliği
Telecommunication Engineering
Telecommunication Engineering
Journal Title
Journal ISSN
Volume Title
Publisher
Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
Type
Abstract
Bu çalışmada, manyetik iletkenlik özelliğine sahip bir yüzeye ait ters problem çözümü sunularak, cismin şeklinin ve elektriksel özelliklerinin bulunması için yeni ve hızlı bir metot verilmiştir. Öngörülen sistemde, yüzeyden saçılan elektromanyetik dalgalar yüzeyden yukarıda bir düzlem boyunca ölçülür. Kullandığımız yöntemde ölçün yapılan uzayla, bulunması hedeflenen yüzeyin arası varsayımsal bir düzlemle iki yarım uzaya bölünür. Üst kısımda kalan her noktadaki saçılma, Fourier transformu ifadesiyle tanımlanır. Daha sonra manyetik iletkenlik özelliğine sahip bir yüzeydeki sınır koşulları kullanılarak problem lineer olmayan bir denkleme indirgenir
The main aim of this thesis is to give a new, simple and fast method to determine the location and shape of a perfectly magnetic conducting rough surface. The surface is reconstructed using the illumination by a single plane monochromatic wave and the near field measurements of the scattered field are performed on a line parallel to the mean surface. The novelty of the method is that the lossy half-space above the surface is first separated into two parts by an estimated plane, and then the scattered field in the upper region above this plane is expressed in terms of a Fourier transform while it is expanded into a Taylor series in the lower part. The boundary condition on the Perfect Magnetic Conductive surface requires that the normal derivative of the total electric field should vanish. The use of this condition allows the reduction of the problem to the solution of a non-linear equation for the unknown surface function.
The main aim of this thesis is to give a new, simple and fast method to determine the location and shape of a perfectly magnetic conducting rough surface. The surface is reconstructed using the illumination by a single plane monochromatic wave and the near field measurements of the scattered field are performed on a line parallel to the mean surface. The novelty of the method is that the lossy half-space above the surface is first separated into two parts by an estimated plane, and then the scattered field in the upper region above this plane is expressed in terms of a Fourier transform while it is expanded into a Taylor series in the lower part. The boundary condition on the Perfect Magnetic Conductive surface requires that the normal derivative of the total electric field should vanish. The use of this condition allows the reduction of the problem to the solution of a non-linear equation for the unknown surface function.
Description
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2008
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2008
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2008
Journal or Series
ISSN
ISBN
Rights
İTÜ tezleri telif hakkı ile korunmaktadır. Bunlar, bu kaynak üzerinden herhangi bir amaçla görüntülenebilir, ancak yazılı izin alınmadan herhangi bir biçimde yeniden oluşturulması veya dağıtılması yasaklanmıştır.
İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
Keywords
Manyetik İletkenlik Özelliğine Sahip Yüzey, Ters Problem, Perfect Magnetic Conducting Surface, Inverse Problem
Citation
Endorsement
Review
Supplemented By
Referenced By
13
Görüntülenme
34
İndirme
Google Scholar
Scholar'da Ara ↗ Bu yayında DOI yok — Altmetric/Dimensions/PlumX/BIP! rozetleri DOI gerektirir.