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    Proc Natl Acad Sci U S A. 1979 Feb;76(2):996-8.

    Nonlinear systems analysis: comparison of white noise and sum of sinusoids in a biological system.

    Abstract

    The Gaussian white noise and the sum-of-sinusoids methods of systems analysis provide equivalent descriptions of nearly linear and strongly nonlinear transductions in the cat retina. Smoothness in the frequency domain is a common characteristic of biological transductions. This permits a substantial improvement in the signal-to-noise ratio by using the sum-of-sinusoids method, as is demonstrated for the transductions of the cat retina.

    PMID:
    284424
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC383117
    Free PMC Article

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