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Konu "Edge Diffraction" için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Konu "Edge Diffraction" için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

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  • Comparison of Diffraction Methods for Lunar Occultations 
    Umul, Yusuf Ziya (Elsevier GMBH, 2020-03)
    The only analytical method, which is used for the mathematical analysis of lunar occultations, is the Fresnel diffraction. The Fresnel integral is derived from the diffraction integral of Kirchhoff under some approximations. ...
  • Diffraction of cylindrical waves by a perfectly conducting half-screen: a modified theory of physical optics solution 
    Umul, Yusuf Ziya (Wiley-Blackwell, 2016-08)
    The scattering problem of waves, radiated by a line source, is investigated by the method of modified theory of physical optics. The solution is obtained for both of the Dirichlet and Neumann boundary conditions. Two ...
  • Diffraction of waves by a resistive half-plane 
    Umul, Yusuf Ziya (Elsevier Science Bv, 2014-07-15)
    The scattered waves by a resistive half-plane are investigated with defining reflection and transmission coefficients for the diffracted waves. The coefficients are determined according to suitable conditions that are ...
  • General formulation of the edge-diffracted paraxial waves 
    Umul, Yusuf Ziya (Elsevier Science, 2009-09)
    A general formula for edge-diffracted paraxial waves is derived in terms of the Fourier integral transform. It is observed that the scattered paraxial wave can be divided into components of the geometrical optics and ...
  • General formulation of the scattered matter waves by a quantum shutter 
    Umul, Yusuf Z. (2009-01)
    The scattering process of matter waves by a quantum shutter is investigated by using the spectrum integral representation. The scattered fields are expressed in terms of the Fresnel function. It is shown that the obtained ...
  • Interaction of electromagnetic waves with a resistive half-plane 
    Umul, Yusuf Ziya (Springer France, 2016-06)
    The interaction process of electromagnetic waves by a resistive half-plane is investigated. The scattered geometrical optics fields are obtained by subtracting the incident field from the total geometrical optics waves. ...
  • Physical optics theory for the diffraction of waves by impedance surfaces 
    Umul, Yusuf Ziya (Optical Soc Amer, 2011-02)
    The solution of the scattering problem of waves by a half-screen with equal face impedances, which was introduced by Malyughinetz, is transformed into a physical optics integral by using the inverse edge point method. The ...
  • Rubinowicz transform of the MTPO surface integrals 
    Umul, Yusuf Ziya (Elsevier Science BV, 2008-12-01)
    The surface integral of the modified theory of physical optics is reduced to a line integral by using the Rubinowicz transform for the incident scattered fields by an arbitrary aperture in a black surface. The integral ...
  • The relation between the boundary diffraction wave theory and physical optics 
    Umul, Yusuf Ziya (Elsevier Science, 2008-10-01)
    The physical optics surface integral is asymptotically reduced to a line integral along the contour of the diffracting edge. It is shown that the resultant integral can be separated into two sub-integrals which represent ...
  • Three dimensional modified theory of physical optics 
    Umul, Yusuf Ziya (Elsevier GMBH, 2016)
    The three dimensional version of the modified theory of physical optics is introduced with the aid of a Green's function that satisfies the Helmholtz equation in local spherical coordinates. The algorithm which leads to ...
  • Uniform asymptotic theory for the edge diffraction of cylindrical waves 
    Umul, Yusuf Ziya (INST Engineering Technology, 2017-12-10)
    The uniform asymptotic theory of diffraction is reintroduced in terms of the Fresnel cylinder function for the diffraction problems of cylindrical waves. The transition function of the above theory, which compensates the ...
  • Uniform theory of the boundary diffraction wave 
    Umul, Yusuf Ziya (Elsevier, 2009-04)
    A uniform version of the potential function of the Maggi–Rubinowicz boundary diffraction wave theory is obtained by using the large argument expansion of the Fresnel integral. The derived function is obtained for the problem ...
  • Uniform version of the modified theory of physical optics based boundary diffraction wave theory 
    Umul, Yusuf Ziya (Taylor&Francis Inc, 2008)
    The potential function of the modified theory of physical optics based boundary diffraction wave theory is made uniform by using the principles of the uniform theory of diffraction. The line integration of this new function ...