电波传播预测仿真方法

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圈2接收功率对收发天线距离

4结论

本文给出了一种预测空的矩形直隧道中电磁波传播特性的计算机仿真模型。通过与一种商用电磁波传播预测软件(Wireless—Insite)的仿真比较,两种方法预测的结果比较吻合,两者在预测精度上不相上下,新模型的计算以及建模效率大大高于Wireless—Insite软件的效率。虽然该方法是从矩形截面隧道推导而来,相关研究表明,该方法同样适用于其它截面形状的隧道。因此,利用新的预测模型替代专业电磁波传播仿真软件,可以比较准确而简单地预测出空的直隧道环境中电磁波传播特性。

衰1两种模型的仿真结果比较

Sta.:统计特性;Av.:平均接收功率;time:仂真时间;Mod:模型;N:新模型;W:wirelessInsite软件。

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【作者简介】

贾明华(1967一)。男(汉族)。安徽人。博士生,主要

研究方向:电磁场传播规律预测;

郑国莘(1950一),男(汉族),山西太原人,教授,博

t生导师,主要研究方向:限定空间无线通信;

张欣(1984一),男(汉族),河南人。硕士研究生。

主要研究方向:宽带无线通信与嵌入式系统。万方数据

电波传播预测仿真方法

作者:贾明华, 郑国莘, 张欣, JIA Ming-hua, ZHENG Guo-xin, ZHANG Xin

作者单位:上海大学特种光纤与光接入网省部共建重点实验室,上海,200072

刊名:

计算机仿真

英文刊名:COMPUTER SIMULATION

年,卷(期):2010,27(11)

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4.Y P Zhang;H J Hong Ray-optical modeling of simulcast radio propagation channels in tunnels[外文期刊] 2004(06)

5.Mohammad Haeri Kermani;Mahmuoud Kamarei A ray-tracing method for predicting delay spread in tunnel environment 2000

6.Zhang Shen Tent law and modeling of radio digital communication channel in tunnel

7.Ji Zhong;Li Bin-Hong;Wang Hao-Xing;Chen Hsing-Yi,T K Sarkar Efficient ray-tracing methods for propagation prediction for indoor wireless communications 2001(02)

8.R Sato;H Sato;H Shirai A SBR algorithm for simple indoor propagation estimation 2005

9.D Didascalou;T M Schafer;F Weinmann;W Wiesbeck Ray-density normalization for ray-optical wave propagation modeling in arbitrarily shaped tunnels[外文期刊] 2000(09)

10.D J Cichon;T Zwick;W Wiesbeck Ray optical modeling of wireless communications in high-speed railway tunnels 1996

11.F Layer;R Kattenbach;H Fruchting Ray optical approach for a wideband indoor wave propagation model with moving receiver 1997

12.A G Emslie;R L Lagace;P F Strong Theory of the propagation of UHF radio waves in coal mine tunnels 1975(02)

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