عنوان :
آناليز گذاري پراكندگي استوانه هاي فلزي (با سطح مقطع دلخواه) با روش ممان حوزه زمان تسريع شده
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مخابرات ميدان
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر
صفحه شمار :
چهارده،94ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
حسين فيروزه
استاد مشاور :
ابوالقاسم زيدآبادي نژاد
توصيفگر ها :
معادلات انتگرالي حوزه زمان , پايداري در حوزه زمان , تابع گرين دو بعدي فضاي آزاد در حوزه زمان , پراكندگي گذراي الكترومغناطيسي , توابع پايه زماني , استخراج و رفع تكينگي در معادلات انتگرالي , الگوريتم گام به گام زماني , ناپايداري زمان دير هنگام , محاسبه تحليلي انتگرال هاي مكاني در معادلات انتگرالي الكترومغناطيسي
تاريخ نمايه سازي :
16/1/93
استاد داور :
رضا صفيان، محسن مداح علي
دانشكده :
مهندسي برق و كامپيوتر
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Abstract Transient scattering of electromagnetic waves from dielectric and conducting cylinders has important applications such as wideband response from dielectric or conducting objects target identification through short pulse radar electromagnetic compatibility EMC and etc When for example the scatterer is coated with ferromagnetic or chiral radar absorbing materials its response will be nonlinear and standard methods in the frequency domain are not applicable Generally when the wideband response due to short band incident wave on a system is required direct Time Domain TD analysis is more efficient than Frequency Domain FD analysis Time domain methods are divided to two large group Differential Equation DE methods and Integral Equation IE methods In recent two decades more scientists have particularly studied on Time Domain Integral Equations TDIE solved by Time Domain Method of Moment TD MoM TDIEs are attractive because only surface discretization is required in homogen problems wideband frequency response is achieved in the moment and it is simply to apply on nonlinear problems However these methods suffer from late time instability and high computational complexity which severely limits their application to practical real world problems In this thesis a wise accurate stable and efficient scheme is proposedto solve Electric Field Integral Equation EFIE with the method of moment for scattering from infinite conducting cylinder illuminated by TM and TE polarized Gaussian plane wave The two dimensional free This scheme considerably reduces numerical errors enhances the extent of the stable region and decreases the computation times by using analytical time derivatives and time convolution integrals arising in the TDIE formulation Also the effect of choosing various temporal basis functions TBFs is investigated Keywords Time domain integral equation stability two dimensional function transient scattering temporal basis function singularity marching on in time late time instability
استاد راهنما :
حسين فيروزه
استاد مشاور :
ابوالقاسم زيدآبادي نژاد
استاد داور :
رضا صفيان، محسن مداح علي
