An off-the-shelf RTL-SDR dongle.

Download scientific diagram | An off-the-shelf RTL-SDR dongle. from publication: LoRay: AoA Estimation System for Long Range Communication Network | In this paper, we introduce a comprehensive angle of arrival (AoA) estimation solution for the long range (LoRa) communication network. Termed the LoRa array (LoRay), the proposed system constitutes hardware and software solutions to estimate the AoA of the received signals | AoA, Estimation and Localization | ResearchGate, the professional network for scientists.

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An off-the-shelf RTL-SDR dongle.