Research on the Design and Experimental Scheme of Replacing Leakage Cable with Antenna Feedback System for Wireless Communication Network Coverage in Railway Tunnels
The transmission and reception terminals of radio waves primarily consist of two approaches:antennas and leaky cables.Currently,China's railway wireless communication within tunnels adopts a design scheme that involves hanging leaky coaxial cables along tunnel walls to extend signal coverage.However,this design not only incurs high construction costs and poses significant construction challenges during the initial stage,but also entails even greater costs and difficulties for subsequent upgrades and renovations of leaky coaxial cables compared to the initial construction phase.Replacing leaky cables with antenna-feeder systems for wireless signal coverage within tunnels can not only substantially reduce railway construction and later-stage upgrade expenses but also facilitate routine maintenance and rapid troubleshooting.In high-speed railway CTCS-3 train control lines,this approach enables redundant protection coverage for wireless networks,thereby ensuring a more secure and reliable wireless network within tunnels.
维普
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