In the automotive and rail domains, vehicles are entering the era of full automation thanks to
wireless sensors and communication systems, shifting control functions from a human driver …

Radio wave propagation in confined spaces is consequent upon the reflections of
boundaries; thus, the radiation characteristics of the antenna have significant influence on …

This work describes a quad-port Ultra Wide Band (UWB) multiple input-multiple output
(MIMO) antenna with axial ratio bandwidth that is small and circularly polarised. The …

In this paper, field coverage generated by antenna locating in rectangular tunnel is studied.
Ray tracing method is utilized to simulate the wave propagation in tunnel environment, the …

This letter presents a deep insight on a real implementation of a train-to-wayside broadband
radio on subway tunnels that makes use of a 2× 2 MIMO-OFDM setup. A keyhole is a …

受限空间中的有效电波覆盖直接影响通信质量和可靠性, 对天线系统的布局优化尤为重要.
然而现有的研究很少考虑本来就处于隧道中的天线参数对电波覆盖的影响 …

One of the key challenges in railway engineering is how to provide passengers an efficient,
secure, and safe service. To achieve this, operators and stakeholders demand robust and …

Electromagnetic wave propagation in confined environments, such as mine, road or railway
tunnels, has inadmissible quality due to multi-path and high scattering effects of receivable …

An ultra-wideband (UWB) spatial filter concept is proposed for one-dimensional time-of-
arrival (TOA) localization in a tunnel environment. The spatial filter exploits the fact that …

Confined environments like tunnels are electrically large structures for guided wave
propagation. They can have arbitrary cross sections, and the design and optimization of …