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https://www.um.edu.mt/library/oar/handle/123456789/102734
Title: | Large horizontal near-field scanner based on a non-tethered unmanned aerial vehicle |
Authors: | Ciorba, Lorenzo Virone, Giuseppe Paonessa, Fabio Righero, Marco de Lera Acedo, Eloy Matteoli, Stefania Colin Beltran, Edgar Bolli, Pietro Giordanengo, Giorgio Vecchi, Giuseppe Magro, Alessio Chiello, Riccardo Peverini, Oscar A. Addamo, Giuseppe |
Keywords: | Aperture antennas Calibration Signal processing Antenna arrays Radio telescopes Drone aircraft |
Issue Date: | 2022 |
Publisher: | Institute of Electrical and Electronics Engineers |
Citation: | Ciorba, L., Virone, G., Paonessa, F. Righero, M., De Lera Acedo, E., Matteoli, S.,...Addamo, G. (2022). Large horizontal near-field scanner based on a non-tethered unmanned aerial vehicle. IEEE Open Journal of Antennas and Propagation, 3, 568-582. |
Abstract: | A horizontal planar scanner with an approximate size of 40 m ×40 m has been implemented using the Unmanned Aerial Vehicle (UAV) technology. The UAV is not wired to the ground to maintain the flexibility and short setup time of a non-tethered flight. In this configuration, the UAV-mounted continuous-wave source is not phase-locked to the on-the-ground receiver. A dual-polarized reference antenna placed on the ground is hence used to retrieve the relevant phase information. The presented approach has been applied on the Pre - Aperture Array Verification System (Pre -AAVS1) of the Square Kilometre Array, which is a digital beamformed array with 16 active elements. An inverse source technique has been applied on measured Near-Field (NF) data acquired on two different sets of points (one for each electric field component) from all the receiver channels. In this way, Embedded Element Patterns (EEPs), array calibration coefficients and pattern have been determined from NF data only. The achieved results have been validated using a complementary set of Far-Field (FF) measurements and simulations. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/102734 |
Appears in Collections: | Scholarly Works - InsSSA |
Files in This Item:
File | Description | Size | Format | |
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Large_Horizontal_Near-Field_Scanner_Based_on_a_Non-Tethered_Unmanned_Aerial_Vehicle.pdf Restricted Access | 3.8 MB | Adobe PDF | View/Open Request a copy |
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