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Journal of applied research and technology
versão On-line ISSN 2448-6736versão impressa ISSN 1665-6423
Resumo
BANUELOS-SAUCEDO, M. A. et al. Implementation of a neuron model using FPGAS. J. appl. res. technol [online]. 2003, vol.1, n.3, pp.248-255. ISSN 2448-6736.
Artificial neural networks base their processing capabilities in a parallel architecture, and this makes them useful to solve pattern recognition, system identification, and control problems. In this paper, we present a FPGA (Field Programmable Gate Array) based digital implementation of a McCulloch-Pitts type of neuron model with three types of non-linear activation function: step, ramp-saturation, and sigmoid. We present the VHDL language code used to implement the neurons as well as to present simulation results obtained with Xilinx Foundation 3.0 software. The results are analyzed in terms of speed and percentage of chip usage.
Palavras-chave : Digital artificial neuron; field programmable gate array; McCullogh-Pitts neuron.