小區(qū)覆蓋預(yù)測中一種有效的射線跟蹤技術(shù)
An efficient ray-tracing method for propagation prediction in microcellular environment
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摘要: 射線跟蹤法是近年來常用于城市微小區(qū)和室內(nèi)環(huán)境無線電波傳播信道特性預(yù)測的方法,但其在具體實現(xiàn)方面仍有許多問題需要進(jìn)一步的研究。本文將計算機圖形學(xué)中的八叉樹方法用于射線跟蹤法,得到了一種提高射線跟蹤效率的方法。
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關(guān)鍵詞:
- 射線跟蹤; 微小區(qū); 八叉樹方法
Abstract: Ray-tracing technique is an efficient method to analyse the propagation in urban and indoor environment, but there are still many questions which need to be studied while realizing. In this paper, octatree technique which was first used in computer graphics is used in ray-tracing, and the ray-tracing efficiency is improved. -
M.F. Catedra, J. Perez, F. Saez de Adana, O. Gutierrez, Efficient ray-tracing techniques for three-dimensional analyses of propagation in mobile communications: application to picocell and microcell scenarios, IEEE Antennas and Propagation Magazine, 1998, 40(2), 15-27.[2]唐榮錫,汪嘉業(yè),彭群生等編著,計算機圖形學(xué)教程,北京,科學(xué)出版社出版,1994,第10章第4節(jié). -
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