| Texto completo | |
| Autor(es): |
Ribeiro, Moisés Vidal
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | EURASIP Journal on Advances in Signal Processing; v. 16, p. 2592-2599, Nov. 2004. |
| Área do conhecimento: | Engenharias - Engenharia Elétrica |
| Assunto(s): | Fuzzy (inteligência artificial) |
| Resumo | |
This paper introduces adaptive fuzzy equalizers with variable step size for broadband power line (PL) communications. Based on delta-bar-delta and local Lipschitz estimation updating rules, feedforward, and decision feedback approaches, we propose singleton and nonsingleton fuzzy equalizers with variable step size to cope with the intersymbol interference (ISI) effects of PL channels and the hardness of the impulse noises generated by appliances and nonlinear loads connected to low-voltage power grids. The computed results show that the convergence rates of the proposed equalizers are higher than the ones attained by the traditional adaptive fuzzy equalizers introduced by J. M. Mendel and his students. Additionally, some interesting BER curves reveal that the proposed techniques are efficient for mitigating the above-mentioned impairments. (AU) | |
| Processo FAPESP: | 02/12216-3 - Técnicas avançadas de processamento de sinais em telecomunicações: desconvolução e identificação |
| Beneficiário: | João Marcos Travassos Romano |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 01/08513-0 - Transmissao e equalizacao por sub-bandas e concelamento de ruidos impulsivos para uso eficiente dos canais plc (powerline communication). |
| Beneficiário: | Moises Vidal Ribeiro |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |