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An UTD-based 3D ray tracing model is presented as a valid tool to analyse the satellite-to-helicopter (H-SATCOM) radio channel. Formerly, experimental trials were conducted in outdoor scenarios using an actual helicopter in order to measure and characterize the power level fading and the Doppler spectrum at Ku band (14.25 GHz). The ray tracing model was derived and validated from these results. Here...
We have developed a semi-Markov model for the satellite to helicopter radio channel at Ku band. It is a simple narrowband model to characterize signal level variations. Firstly, we performed several propagation measurements using two actual helicopters. Then, we identified three different states in the received signal fluctuation. The first one corresponds to a Line of Sight (LoS) situation, with...
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