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The correlation between signals received on multiple antennas is a function of the channel(s) between them, and analysis of this is useful for spatial diversity and spatial multiplexing. In this paper we compute the correlations in both the spatial and frequency domains for a classical two-ray channel in a SIMO setting for an air-ground setting. We analyze this for the “pure” (deterministic) two-ray...
The use of unmanned aircraft systems (UAS) is expanding rapidly. For safe and reliable integration of UAS into the National Airspace System (NAS), control and nonpayload communication (CNPC) system requirements are being developed. The air-to-ground (AG) channel characteristics essentially determine CNPC link performance. The National Aeronautics and Space Administration (NASA) Glenn Research Center...
We provide measurement results from an air-to-ground channel measurement campaign undertaken in a hilly terrain suburban environment. This campaign is part of a larger project-sponsored by NASA-aimed at developing measurement based models for the air-to-ground channel, for use in evaluation of unmanned aircraft system (UAS) communication link development. Our measurements provide dual-band SIMO power...
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