Detailed analysis of amplitude and slope diffraction coefficients for knife-edge structure in S-UTD-CH model
Yükleniyor...
Dosyalar
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ASTES Publishers
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In urban, rural and indoor applications, diffraction mechanism is very important to predict the field strength and calculate the coverage accurately. The diffraction mechanism takes place on NLOS (non-line-of-sight) cases like rooftop, vertex, corner, edge and sharp surfaces. S-UTD-CH model computes three type of electromagnetic wave incidence such as direct, reflected and diffracted waves, respectively. As obstacles in diffraction geometry are in the same or closer height, contribution of the diffraction mechanism is dominant. To predict the diffracted fields accurately, amplitude and slope diffraction coefficients and the derivative of these coefficients have to be taken correctly. In this paper, all the derivations about diffraction coefficients are made for knife edge type structures and extensive simulations are performed in order to analyze the amplitude and diffraction coefficients. In plane angle diffraction, contributions of amplitude and slope diffraction coefficient are maxima. © 2017 ASTES Publishers. All rights reserved.
Açıklama
Anahtar Kelimeler
Diffraction coefficient, S-UTD-CH model, Wave Diffraction
Kaynak
Advances in Science, Technology and Engineering Systems
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
2
Sayı
3
