Publisher DOI: 10.1109/ICL-GNSS51451.2021.9452310
Title: Multibeam antenna array and software switching for low-complexity low-cost GNSS beamforming
Language: English
Authors: Sengupta, Nabanita 
Rossouw Van Der Merwe, J. 
Kölpin, Alexander  
Rugamer, Alexander 
Kuhl, Matthias  
Felber, Wolfgang 
Keywords: beamforming;Butler matrix;Global navigation satellite system (GNSS);radio frequency beam-forming network (RF-BFN)
Issue Date: Jun-2021
Source: International Conference on Localization and GNSS (ICL-GNSS 2021)
Abstract (english): 
The received signals from GNSS satellites are low power and below the noise floor. Furthermore, GNSS antennas have low directivity to receive all signals simultaneously. Beamforming improves the carrier-to-noise density ratio (C/N0) before further processing by improving the directivity towards a specific satellite using an antenna array. Creating a beam for each satellite is processing intensive and leads to high costs. This paper presents a multibeam antenna array and software channel selection for low-cost beamforming for GNSS applications. Theoretical evaluations show benefits to signal gain and interference suppression, and practical results show an initial proof of concept.
Conference: International Conference on Localization and GNSS, ICL-GNSS 2021 
ISBN: 978-172819644-2
Institute: Integrierte Schaltungen E-9 
Hochfrequenztechnik E-3 
Document Type: Chapter/Article (Proceedings)
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