Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/91427
Title: Measurements of the propagation of UHF radio waves on an underground railway train
Authors: Zhang, Yue Ping
Jiang, Z. R.
Ng, Tung Sang
Sheng, J. H.
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
Issue Date: 2000
Source: Zhang, Y. P., Jiang, Z. R., Ng, T. S., & Sheng, J. H. (2000). Measurements of the propagation of UHF radio waves on an underground railway train. IEEE Transactions on Vehicular Technology. 49(4), 1342-1347.
Series/Report no.: IEEE transactions on vehicular technology
Abstract: Measurements of the natural propagation of UHF radio waves on an underground train are reported. Of prime interest are the natural propagation attenuation and the median signal level behavior. The propagation attenuation rates or the median signal level behaviors are found to correlate with the train carriages and frequency. On the front carriage, the propagation attenuation rate is 54 dB/100 m at 465 MHz and reduced to 21 dB/100 m at 820 MHz. However, on the rear carriage, it becomes 14.8 dB/100 m at 465 MHz and 7.8 dB/100 m at 820 MHz. It is shown that higher frequency is beneficial to the natural propagation and the train body greatly affects the natural propagation. Furthermore, the values of the path loss exponent are also given.
URI: https://hdl.handle.net/10356/91427
http://hdl.handle.net/10220/6323
ISSN: 0018-9545
DOI: http://dx.doi.org/10.1109/25.875255
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metadata.item.grantfulltext: open
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Appears in Collections:EEE Journal Articles

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