Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/5071
Título: | Improvements and analysis of nonlinear parallel behavioral models |
Autor: | Silveira, D.D. Gilabert, P.L. Lavrador, P.M. Pedro, J.C. Gadringer, M. Montoro, G. Bertran, E. Magerl, G. |
Palavras-chave: | Behavioral Estimation Microwave power amplifiers Modeling Nonlinear systems Behavioral Behavioral model Current limitation Filtering technique Linear estimation Measured signals Microwave power amplifiers Modeling Non-Linearity Nonlinear behavior Parallel configuration Parallel structures Simulated data Static and dynamic Sub-bands Estimation Microwave amplifiers Microwave generation Microwave power transmission Nonlinear analysis Nonlinear systems Power amplifiers Mathematical models |
Data: | Set-2009 |
Editora: | Wiley Blackwell |
Resumo: | This article performs an analysis of current limitations regarding the extraction of parallel behavioral models to reproduce the power amplifier (PA) nonlinear behavior and its dynamics. To overcome these limitations, a general preprocessing block that clearly improves the identification capabilities shown by classical parallel structures is proposed. It follows the principle of separating both static and dynamic nonlinear behavior of the PA to obtain a better identification performance. A comparison with common parallel configurations using linear estimation is performed, to highlight the benefits of using the preprocessing structure. Furthermore, a new nonlinear parallel structure using sub-band filtering techniques is also proposed. For the models extraction and comparison, four types of noise-free simulated data presenting different levels of nonlinearities and memory, as well as a measured signal obtained from a laboratory amplifier have been considered. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5071 |
ISSN: | 1096-4290 |
Versão do Editor: | http://onlinelibrary.wiley.com/doi/10.1002/mmce.20385/pdf |
Aparece nas coleções: | DETI - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Improvements and Analysis of Nonlinear Parallel Behavioral Models.pdf | Documento Publicado | 517.19 kB | Adobe PDF |
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