Journal
IEEE TRANSACTIONS ON SIGNAL PROCESSING
Volume 53, Issue 8, Pages 3202-3210Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSP.2005.851119
Keywords
local signal-to-noise ratio; noise-enhanced processing; sigma-delta quantization
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In this paper, we show that a particular EA quantizer, which is a strongly nonlinear dynamical system, can provide noise-enhanced processing effects in some sense. In particular, we will show that quantizing a sine, which means adding a small amount of noise in the input, can improve the quantization process. In particular, the output local signal-to-noise ratio (SNR) exhibits a maximum when plotted against the noise amplitude.
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