Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Noise improvement of SNR gain in parallel array of bistable dynamic
  systems by array stochastic resonance   We report the regions where a signal-to-noise ratio (SNR) gain exceeding
unity exists in a parallel uncoupled array of identical bistable systems, for
both subthreshold and suprathreshold sinusoids buried in broadband Gaussian
white input noise. Due to independent noise in each element of the parallel
array, the SNR gain of the collective array response approaches its local
maximum exhibiting a stochastic resonant behavior. Moreover, the local maximum
SNR gain, at a non-zero optimal array noise intensity, increases as the array
size rises. This leads to the conclusion of the global maximum SNR gain being
obtained by an infinite array. We suggest that the performance of infinite
arrays can be closely approached by an array of two bistable oscillators
operating in different noisy conditions, which indicates a simple but effective
realization of arrays for improving the SNR gain. For a given input SNR, the
optimization of maximum SNR gains is touched upon in infinite arrays by tuning
both array noise levels and an array parameter. The nonlinear collective
phenomenon of SNR gain amplification in parallel uncoupled dynamical arrays,
i.e. array stochastic resonance, together with the possibility of the SNR gain
exceeding unity, represent a promising application in array signal processing.

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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph