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- W1986933782 abstract "A differential architecture of an analog Viterbi decoder is presented. Analog processing enables the analog–digital converter to be excluded from the decoder realization. Moreover, high-speed operation can be achieved via differential processing. We describe the differential operation, together with the resulting decoder structure. The differential architecture enables the trace-back memory to be excluded and makes online decoding after initial transitional stages possible. We analyze the performance of the differential analog decoder by including analog circuit nonidealities in the system-level model. The decoder obeys a nonlinear transfer function, and the monotonical growth of path metrics is avoided by scaling and subtraction of the global minimum. The resulting differential analog decoder performance is compared with the performance of a 3-bit soft-decision digital Viterbi decoder. The simulations are performed for a (2,1,7) convolutional code." @default.
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- W1986933782 date "2008-05-01" @default.
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- W1986933782 title "A Differential Architecture for an Online Analog Viterbi Decoder" @default.
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- W1986933782 doi "https://doi.org/10.1109/tcsi.2008.916546" @default.
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