Radio Channel Models for Search-and-Rescue Missions into Collapsed Structures
(2013) URSI International Symposium on Electromagnetic Theory (EMTS — Location: Hiroshima, Japan (20.May.2013)
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- Abstract
- Propagation models in the TETRA/GSM/UMTS bands (from 433 MHz to 1.9 GHz) in partially destroyed buildings are derived, using a number of methods with respect to various collapsed structures. These models are useful in the context of pedestrian radio-localization systems relying on cell phone signals. In addition, the electromagnetic properties of concrete and ferro-concrete materials are experimentally characterized and used in the various models. Simulations show that specific attenuation levels can be very severe, from 10 to 100 dB/m, and increase with frequency. This might seriously limit the detection of victims under more than one meter of ferro-concrete rubbles in the UMTS band. However, localization algorithms based on direction-of-arrival estimation are unlikely to be degraded by multipath spreading.
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Citations
Oestges, C. (2013). Radio Channel Models for Search-and-Rescue Missions into Collapsed Structures. Proceedings of 2013 URSI International Symposium on Electromagnetic Theory (EMTS), p. 1015 - 1018. https://hdl.handle.net/2078.5/255172