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Radiocommunication in tunnels |
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| Authors: | Deryck L |
| Affiliation: | Université de Liège, Institut de Physique, Liège, Belgium; |
| Abstract: | Two processes for the improvement of a bifilar line used as a support for propagation in an underground gallery are described. They consist in introducing networks on the line to bring about energy exchanges between the two propagation modes which characterise it. |
| Keywords: | |