Large Array Antenna Aperture for GNSS Applications

In this article, we propose a systematic procedure that exploits the available antennas to achieve a large array antenna aperture. The proposed procedure utilizes the coarray concept to provide a large virtual array antenna, thus achieving a high beamforming gain and a high spatial resolution. The p...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 2024-02, Vol.60 (1), p.675-684
Main Authors: BniLam, Noori, Principe, Fabio, Crosta, Paolo
Format: Article
Language:English
Subjects:
Angle-of-Arrival (AoA)
Antenna arrays
Antennas
Aperture antennas
Apertures
array antennas
Array signal processing
Beamforming
beamforming techniques
BeiDou satellite system (BDS)
CN0
coarrays
Galileo
Global navigation satellite system
GNSS receiver
GPS
Interference
Linear antenna arrays
Lower bounds
Receiving antennas
SDR
Spatial resolution
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Description
Summary:In this article, we propose a systematic procedure that exploits the available antennas to achieve a large array antenna aperture. The proposed procedure utilizes the coarray concept to provide a large virtual array antenna, thus achieving a high beamforming gain and a high spatial resolution. The procedure also employs an Angle-of-Arrival (AoA) evaluation step in order to detect the array antenna phase ambiguity, which might occur due to the random nature of the selected antennas' distribution. The procedure is generic and application agnostic; however, we have adopted here the Global Navigation Satellite System. The performance of every selected array antenna has been analyzed, theoretically, using the Cramer-Rao Lower Bound calculations. In addition, simulation and experimental analyses have also been performed to verify the performance of the selected array antennas. All the provided analyses show that the selected array antennas, using the proposed procedure, outperform the traditional planar array antennas.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2023.3327038