Enhancing weak signal transmission through a feedforward network
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
05/11/2013
05/11/2013
2012
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| Resumo |
The ability to transmit and amplify weak signals is fundamental to signal processing of artificial devices in engineering. Using a multilayer feedforward network of coupled double-well oscillators as well as Fitzhugh-Nagumo oscillators, we here investigate the conditions under which a weak signal received by the first layer can be transmitted through the network with or without amplitude attenuation. We find that the coupling strength and the nodes' states of the first layer act as two-state switches, which determine whether the transmission is significantly enhanced or exponentially decreased. We hope this finding is useful for designing artificial signal amplifiers. FAPESP of Brazil [2010/50614-7, 2011/50151-0, 11/03631-6] CNPq of Brazil [306227/2011-8, 560031/2010-6] NNSF of China [10975053, 11135001] |
| Identificador |
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, PISCATAWAY, v. 23, n. 9, p. 1506-1512, SEP, 2012 2162-237X http://www.producao.usp.br/handle/BDPI/41328 10.1109/TNNLS.2012.2204772 |
| Idioma(s) |
eng |
| Publicador |
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PISCATAWAY |
| Relação |
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS |
| Direitos |
restrictedAccess Copyright IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| Palavras-Chave | #COUPLING STRENGTH #DESIGNING ARTIFICIAL DEVICES #DOUBLE-WELL OSCILLATOR #FEEDFORWARD NETWORK #FITZHUGH-NAGUMO OSCILLATOR #INITIAL CONDITION #SIGNAL TRANSMISSION #STOCHASTIC RESONANCE #PROPAGATION #BISTABILITY #SPIKING #SYSTEMS #COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE #COMPUTER SCIENCE, HARDWARE & ARCHITECTURE #COMPUTER SCIENCE, THEORY & METHODS #ENGINEERING, ELECTRICAL & ELECTRONIC |
| Tipo |
article original article publishedVersion |
