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TD solution based on UTD‐PO for multiple‐building diffraction with shadowing caused by a wedge‐shaped hill for UWB signals
Author(s) -
Han Tao,
Long Yunliang
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25730
Subject(s) - diffraction , uniform theory of diffraction , wedge (geometry) , transmitter , impulse (physics) , microwave , impulse response , computer science , optics , telecommunications , physics , channel (broadcasting) , mathematics , mathematical analysis , quantum mechanics
A time domain (TD) solution based on uniform theory of diffraction‐physical optics (UTD‐PO) is presented to analyze the multiple‐building diffraction in urban areas where a wedge‐shaped hill causes shadowing of the transmitter from the receiver.We derive the channel impulse response of the renowned Bertoni's model, which utilizes a recursion relation and does not need to incorporate the slope diffraction in the transition zone. The received signals can be predicted through a simple operation of convolution, which provides a faster and easier final solution for UWB radio propagation and significantly reduces the computational time. The TD result can be applied to analyze the UWB pulse distortion by multiple‐building diffraction in urban areas where the city is surrounded by hilly areas. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:426–429, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25730