Elektronik ve Haberleşme Mühendisliği Bölümü

Permanent URI for this communityhttps://hdl.handle.net/20.500.12416/14

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Citation Count: Saraçoğlu, Kıvanç; Üleş, Buğra; Schmidt, Klaus Werner (2018). "A Lane Keeping System with a Weighted Preview Measurement", 2018 26TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU).
A Lane Keeping System with a Weighted Preview Measurement
(2018) Saraçoğlu, Kıvanç; Üleş, Buğra; Schmidt, Klaus Werner
This paper proposes a new lane keeping system (LKS) based on a weighted preview measurement. The paper first identifies shortcomings of existing methods that use the sole measurement of lateral displacement error at a preview distance or at the center of gravity. Then, the novel idea of computing a weighted average of both measurements is proposed. The stability of the resulting LKS is analyzed and the improved performance of the resulting LKS is supported by simulation experiments.
Citation Count: Umul, Yusuf Ziya (2021). "A relativistic electron interacting with electromagnetic waves", Optik, Vol. 231.
A relativistic electron interacting with electromagnetic waves
(2021) Umul, Yusuf Ziya; 42699
A relativistic electron, in an electromagnetic wave is studied. The relativistic energy-momentum relation is taken into consideration for the derivation of a wave equation for spin-1/2 particle. The electromagnetic wave is represented by the electric scalar and magnetic vector potentials. Thus the spin information of the electron is integrated into the relativistic differential equation. A relativistic quantum wave equation is derived by using the derivatives with respect to time and spatial coordinates with respect to the kinetic energy and momentum of the electron. It is shown that the obtained relativistic equation directly reduces to the Pauli equation in the non-relativistic limit.
Citation Count: Umul, Yusuf Ziya (2020). "Diffraction of plane electromagnetic waves by a resistive half-screen for skew incidence", Journal of the Optical Society of America A-Optics Image Science and Vision, Vol. 37, No. 1, pp. 63-69.
Diffraction of plane electromagnetic waves by a resistive half-screen for skew incidence
(2020) Umul, Yusuf Ziya; 42699
The scattering process of electromagnetic plane waves by a resistive half-screen is investigated for oblique incidence. First of all, it is shown that the existing solution in the literature is not correct, because the problem was solved by considering the normal components of the electromagnetic field, in terms of which the boundary conditions cannot be expressed. Instead of these, the components of the electric field, which is parallel to the edge discontinuity, are taken into account. The diffracted fields are obtained with the aid of the method of transition boundary. The uniform field expressions are obtained by using the Fresnel function. The behaviors of the total field and its subcomponents are analyzed numerically. (C) 2019 Optical Society of America
Citation Count: Yalçın, Uğur; Umul, Yusuf Ziya (2020). "Scattering of waves by a planar junction between conductive and impedance half-planes", Optik, Vol. 203.
Scattering of waves by a planar junction between conductive and impedance half-planes
(2020) Yalçın, Uğur; Umul, Yusuf Ziya; 42699
The scattering problem of plane waves by a planar junction between conductive and impedance half-screens is investigated. The problem is solved by using the method of transition boundary. The edge diffracted waves are expressed in terms of Fresnel function in order to obtain the uniform field expressions. The behaviors of the scattered waves are studied numerically.

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Browsing Elektronik ve Haberleşme Mühendisliği Bölümü by Department "Çankaya Üniversitesi, Mühendislik Fakültesi, Elektrik ve Haberleşme Mühendisliği Bölümü"