An Efficient 3-D FDTD-PE Hybrid Model for Radio Wave Propagation with Near-Source Obstacles

Zeina El Ahdab; Funda Akleman

doi:10.1109/TAP.2018.2876719

An Efficient 3-D FDTD-PE Hybrid Model for Radio Wave Propagation with Near-Source Obstacles

Zeina El Ahdab^*
, Funda Akleman

^*Bu çalışma için yazışmadan sorumlu yazar

Elektronik ve Hab.Müh.Bölümü

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

19 Atıf (Scopus)

Özet

A novel 3-D hybrid model is presented for the prediction of propagation of radio waves in the presence of complex obstacles located on regular perfectly conducting terrain. The finite-difference time-domain (FDTD) method is implemented to model the source and obstacle regions, and the wave is then propagated by using the parabolic equation (PE) method-based algorithm. The source region contains all the complex obstacles and takes into consideration all the possible wave interactions in that region. The transition region between the FDTD domain and the PE domain is carefully treated in order to avoid numerical incompatibilities and to realize the time-/frequency-domain transition. The method is applied for different scenarios, starting with relatively simple obstacles like knife-edges for the verification and validation of the approach and then including more complex obstacles to the propagation medium. The results are compared to those obtained from full FDTD implementations of the same scenarios.

Orijinal dil	İngilizce
Makale numarası	8496830
Sayfa (başlangıç-bitiş)	346-355
Sayfa sayısı	10
Dergi	IEEE Transactions on Antennas and Propagation
Hacim	67
Basın numarası	1
DOI'lar	https://doi.org/10.1109/TAP.2018.2876719
Yayın durumu	Yayınlandı - Oca 2019

Bibliyografik not

Publisher Copyright:
© 1963-2012 IEEE.

Finansman

Manuscript received January 18, 2018; revised September 4, 2018; accepted October 8, 2018. Date of publication October 18, 2018; date of current version January 16, 2019. This work was supported in part by the Scientific Research Projects Coordination Unit at Istanbul Technical University under Project 38038 and in part by the Turkey Scholarships Program. (Corresponding author: Zeina El Ahdab.) The authors are with the Department of Electrical and Electronics Engineering, Istanbul Technical University, Istanbul 34467, Turkey (e-mail: [email protected]; [email protected]).

Finansörler	Finansör numarası
Istanbul Teknik Üniversitesi	38038

Belgeye Erişim

10.1109/TAP.2018.2876719

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "An Efficient 3-D FDTD-PE Hybrid Model for Radio Wave Propagation with Near-Source Obstacles",

abstract = "A novel 3-D hybrid model is presented for the prediction of propagation of radio waves in the presence of complex obstacles located on regular perfectly conducting terrain. The finite-difference time-domain (FDTD) method is implemented to model the source and obstacle regions, and the wave is then propagated by using the parabolic equation (PE) method-based algorithm. The source region contains all the complex obstacles and takes into consideration all the possible wave interactions in that region. The transition region between the FDTD domain and the PE domain is carefully treated in order to avoid numerical incompatibilities and to realize the time-/frequency-domain transition. The method is applied for different scenarios, starting with relatively simple obstacles like knife-edges for the verification and validation of the approach and then including more complex obstacles to the propagation medium. The results are compared to those obtained from full FDTD implementations of the same scenarios.",

keywords = "3-D radio wave propagation, finite-difference time-domain (FDTD), hybrid method, vector parabolic equation (PE)",

author = "\{El Ahdab\}, Zeina and Funda Akleman",

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year = "2019",

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AB - A novel 3-D hybrid model is presented for the prediction of propagation of radio waves in the presence of complex obstacles located on regular perfectly conducting terrain. The finite-difference time-domain (FDTD) method is implemented to model the source and obstacle regions, and the wave is then propagated by using the parabolic equation (PE) method-based algorithm. The source region contains all the complex obstacles and takes into consideration all the possible wave interactions in that region. The transition region between the FDTD domain and the PE domain is carefully treated in order to avoid numerical incompatibilities and to realize the time-/frequency-domain transition. The method is applied for different scenarios, starting with relatively simple obstacles like knife-edges for the verification and validation of the approach and then including more complex obstacles to the propagation medium. The results are compared to those obtained from full FDTD implementations of the same scenarios.

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KW - hybrid method

KW - vector parabolic equation (PE)

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An Efficient 3-D FDTD-PE Hybrid Model for Radio Wave Propagation with Near-Source Obstacles

Özet

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

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