Brno University of Technology Digital Library (Brno University of Technology) · 2011 · 27 citations · 6 references
Open access
EngineeringElectrical EngineeringAntennasPropagationUnmanned Aircraft SystemsLoss FunctionWireless Channel ModelingAngle Of ElevationMeasurement Campaign DesignPath Loss ModelingPhysical Model TestingPropagation Path LossRadio Wave Path LossReturn LossUrban Propagation Modeling
In this paper we analyze the link between an UAV and a ground control station in an urban area. This link shows a unique geometry which is somewhere in between the purely terrestrial (e.g., a macro-cell channel) and the land mobile satellite case (LMS). We describe a measurement campaign which reproduces the UAV link conditions and shows how the excess loss is mainly dependent on the elevation angle and fairly independent of the distance. Finally, we propose a simple physical model for predicting the excess loss based on a combination of diffracted and reflected components. Results from this model are in good agreement with the measurements.
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