Influence of the velocity on the energy patterns of moving scatterers

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Taylor & Francis

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Parallel to the developments in the communication through space vehicles achieved during the last two decades, the scattering problems connected with moving objects became more and more important from both theoretical and practical points of view. Same problems are also arisen in point of space science, radio astronomy, radar techniques and particle physics. The earlier investigations available in the open literature concern the analysis of the scattered field pattern and, hence, treat the polarization, frequency shift (Doppler effect), aberration, etc, which are all important from both pure scientific and technological points of view. But, another issue which is also important in regard to the communication, antennas and particle physics is the influence of the motion on the scattered energy patterns which involves the radar cross-section and scattering coefficient. This paper is devoted to this purpose and aims to study the influence of the velocity on the received and scattered energies. Notice that the scattered wave is not time-harmonic even though the incident wave is so because the Lorentz transformation formulas interrelate the space coordinates and time, which makes impossible to extend the notion of radar cross-section to moving bodies. For the sake of simplicity of the mathematical manipulations, only two-dimensional case is taken into account but the method can be adapted by straightforward extensions to other types of scatterer.


Anahtar Kelimeler

Electromagnetic-waves, Translational motion, Transmission, Reflection, Cylinder, Wedge, Doppler effect, Electromagnetic wave diffraction, Electromagnetic wave polarization, Electromagnetic wave reflection, Electromagnetic wave refraction, Functions, High energy physics, Mathematical transformations, Wave propagation, Lorentz transformations, Moving scatterers, Radar cross-sections, Space vehicles, Electromagnetic wave scattering


Journal of Electromagnetic Waves and Applications

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Alkumru, A. & İdemen, M. M. (2004). Influence of the velocity on the energy patterns of moving scatterers. Journal of Electromagnetic Waves and Applications, 18(1), 3-22. doi:10.1163/156939304322749580