Phased arrays are complex systems composed of multiple radiating elements that can be directed and changed electronically using beamforming algorithms. They have numerous applications in areas such as radar systems, navigation, wireless communications, and medicine, and are gaining more interest because of their versatility. One of the major difficulties of these systems is the complex management of calibration and synchronization of the radiating elements. We provide an introduction to these systems by analyzing the causes that generate channel time delay. The main resolution methods will be discussed, followed by an application example of beamforming to remove a jammer in a real GNSS signal. We also show how an uncalibrated system fails to function properly, unlike a calibrated one.
Acciarito, S., Canese, L., Cardarilli, G.c., Di Nunzio, L., Fazzolari, R., Cesa, R.l., et al. (2024). Phased Arrays and BeamForming for MIMO and GNSS Applications. In Proceedings of SIE 2023: 54th Annual Meeting of the Italian Electronics Society (pp.323-337). Cham : Springer Cham [10.1007/978-3-031-48711-8_39].
Phased Arrays and BeamForming for MIMO and GNSS Applications
Acciarito S.;Canese L.;Cardarilli G. C.;Di Nunzio L.;Fazzolari R.;Re M.;Spano S.
2024-01-01
Abstract
Phased arrays are complex systems composed of multiple radiating elements that can be directed and changed electronically using beamforming algorithms. They have numerous applications in areas such as radar systems, navigation, wireless communications, and medicine, and are gaining more interest because of their versatility. One of the major difficulties of these systems is the complex management of calibration and synchronization of the radiating elements. We provide an introduction to these systems by analyzing the causes that generate channel time delay. The main resolution methods will be discussed, followed by an application example of beamforming to remove a jammer in a real GNSS signal. We also show how an uncalibrated system fails to function properly, unlike a calibrated one.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
