电信科学 ›› 2010, Vol. 26 ›› Issue (7): 76-79.doi: 10.3969/j.issn.1000-0801.2010.07.019

• 专题：IPv6技术与应用 • 上一篇    下一篇

极化方式对巷道（隧道）无线通信影响的研究

陈鹏1,刘潞峰2   

  1. 1 大连海事大学信息科学技术学院 大连 116026
    2 山西省长治市郊区电视台 长治 046011
  • 出版日期:2010-07-15 发布日期:2017-06-20
  • 基金资助:
    中国博士后科学基金资助项目;辽宁省博士科研启动基金资助项目

Effect of Polarization on Wireless Communication in Tunnel

Peng Chen1,Lufeng Liu2   

  1. 1 Information Science and Technology College，Dalian Maritime University，Dalian 116026，China
    2 Technology Department，Shanxi Changzhi Suburban TV，Changzhi 046011，China
  • Online:2010-07-15 Published:2017-06-20

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摘要：

结合巷道（隧道）的特殊结构及无线信号的传输特性，通过对电磁波极化方式的理论分析，并在横截面高度为3 m、宽度为2 m的巷道中进行了实际测试，通信频率433 MHz，发射功率为-30～-25 dBm，接收灵敏度为-105 dBm，线极化收发天线增益2 dBi，收发数据未进行编码处理。通过对电磁波极化理论与实际的测试结果分析得出，矩形巷道（隧道）高度H 与宽度W相比较，当H＞W，垂直极化方式的传输效果优于水平极化；当H＜W，水平极化方式的传输效果优于垂直极化。

关键词: 垂直极化, 水平极化, 反射波, 透射波, 巷道

Abstract:

Combined with special structure of tunnel and wireless signal transmission characteristics, and analysis of electromagnetic wave polarization,the paper present the measurements of wireless communication in tunnel,the height of tunnel is 3 m and the width of tunnel is 2 m, the testing frequency is 433 MHz, transmit power is from -30 dBm to -25 dBm, receive sensitivity is -105 dBm, the gain of linear polarization antenna is 2 dBi, the transform data is not coding. Through theoretical analysis on electromagnetic wave polarization and measurements, rectangular tunnel height is H and width is W, when H＞W, the vertical polarization mode is better than horizontal polarization; when H＜W, horizontal polarization mode is better than vertical polarization.

Key words: vertical polarization, horizontal polarization, reflection wave, transmission wave, tunnel

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