Research on Wireless Signal Coverage in Metro Station

Abstract

In this paper, Firstly, we analyzed metro platform types and the basic principle of radio frequency (RF) technology. Secondly, we proposed an application method of radio frequency technology in metro. Then, by studying the wireless signal coverage in metro station, we got results of relationships of reflection coefficient G with angle q, and with phase shift z. Finally, we studied an example of signal coverage for wireless network in metro station, three kinds of path difference DLi (i=2, 3, 4) between the reflected wave and incident wave are calculated. This work could provide certain theoretical and practical research value for studying the security transmission of wireless signal in metro station