A NUMERICAL METHOD FOR EVALUATION OF DIFFRACTED FIELD OVER PARALLEL ROWS OF BUILDINGS WITH ARBITRARY HEIGHTS AND SPACINGS

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SOLEYMANI MOHAMMAD; AZIMINEZHAD A.

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Journal: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN) Year:2000 | Volume:11 | Issue:4 Page(s): 23-37

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Title

A NUMERICAL METHOD FOR EVALUATION OF DIFFRACTED FIELD OVER PARALLEL ROWS OF BUILDINGS WITH ARBITRARY HEIGHTS AND SPACINGS

Author(s)

SOLEYMANI MOHAMMAD | AZIMINEZHAD A. | Issue Writer Certificate

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Abstract

This paper aims to present a numerical method for solving the problem of multiple forward diffraction over an array of parallel rows of absorbing half - screens with arbitrary heights and spacings. The distances between half - screens are assumed to be much larger than the operating wavelength.The motive for conducting this research is the interest in prediction of macrocellular propagation of UHF radio waves in urban enviromnents and the cited absorbing half -screens approximate parallel rows of buildings. By exerting some modifications the scope of the presented model applications is expanded in such a way that primary model restrictions (namely the assumption of equi -height rows of uniformly spaced half -screens and bounding the geometry of the problem to the radiations which are beamed from over the rooftops) are eliminated.The obtained model is flexible enough to permit evaluation of the slow fading effects caused by variations in heights and spacings of rows of buildings. In this paper this capability has been made use of in order to check the validity of the results obtained by the proposed numerical method and good agreement has been observed with the measured values. It is believed that such results can be considered useful in design of cellular mobile radio (CMR) systems with elevated base station antennas.

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APA: Copy

SOLEYMANI, MOHAMMAD, & AZIMINEZHAD, A.. (2000). A NUMERICAL METHOD FOR EVALUATION OF DIFFRACTED FIELD OVER PARALLEL ROWS OF BUILDINGS WITH ARBITRARY HEIGHTS AND SPACINGS. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), 11(4), 23-37. SID. https://sid.ir/paper/65386/en

Vancouver: Copy

SOLEYMANI MOHAMMAD, AZIMINEZHAD A.. A NUMERICAL METHOD FOR EVALUATION OF DIFFRACTED FIELD OVER PARALLEL ROWS OF BUILDINGS WITH ARBITRARY HEIGHTS AND SPACINGS. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)[Internet]. 2000;11(4):23-37. Available from: https://sid.ir/paper/65386/en

IEEE: Copy

MOHAMMAD SOLEYMANI, and A. AZIMINEZHAD, “A NUMERICAL METHOD FOR EVALUATION OF DIFFRACTED FIELD OVER PARALLEL ROWS OF BUILDINGS WITH ARBITRARY HEIGHTS AND SPACINGS,” INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), vol. 11, no. 4, pp. 23–37, 2000, [Online]. Available: https://sid.ir/paper/65386/en

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