Identification of the Linear Systems of the Wiener Hammerstein RF Power Amplifier Model Using DFT Analysis

Simple item page
dc.contributor.authorYesil, S.
dc.contributor.authorYilmaz, A. O.
dc.coverage.issue2cs
dc.coverage.volume33cs
dc.date.accessioned2024-05-28T13:14:40Z
dc.date.available2024-05-28T13:14:40Z
dc.date.issued2024-06cs
dc.description.abstractThis paper presents a novel method for identification of the sub-system parameters of a Wiener-Hammerstein Nonlinear (WHNL) system that is used for modeling RF Power Amplifier characteristics. The proposed method first isolates the overall linear system from the memoryless nonlinearity by exploiting the Bussgang decomposition method. Then, Discrete Fourier Transform (DFT) analysis is used for the estimation of the inner linear system. Finally, the outer linear system parameters are updated based on the inner system estimation. The estimated systems are then used to model the target system for an In-Band-Full-Duplex (IBFD) scenario. Performance of Self-Interferene Cancellation (SIC) has been evaluated under the existence of Signal-of-Interest (SoI). Error Vector Magnitude (EVM) metric of the SoI is used to compare with a Half-Duplex (HD) receiver under various inner linear system parameters. SIC performance has been examined with respect to the changing power levels of the SoI and self-interference signal for various delay and gain values of a practical two-tap inner linear system. The benefit of modeling the inner linear system has been revealed by comparing the SIC performance with Hammerstein nonlinear model. The performance has also been compared to well known black box models such as Generalized Memory Polynomial (GMP) and Artificial Neural Networks (ANN).en
dc.formattextcs
dc.format.extent265-273cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2024 vol. 33, č. 2, s. 265-273. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2024.0265en
dc.identifier.issn1210-2512
dc.identifier.urihttps://hdl.handle.net/11012/245677
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2024/24_02_0265_0273.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectWiener-Hammerstein nonlinear systemen
dc.subjectdigital self-interference cancellationen
dc.subjectin-band full-duplex communicationsen
dc.titleIdentification of the Linear Systems of the Wiener Hammerstein RF Power Amplifier Model Using DFT Analysisen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
24_02_0265_0273.pdf
Size:
1.49 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
2024/2