Method and apparatus for variance estimation in amplitude probability distribution model
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United States of America Patent
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Aug 26, 2014
Grant Date -
Jun 21, 2012
app pub date -
Dec 16, 2011
filing date -
Dec 17, 2010
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Abstract
A variance estimation apparatus for an amplitude probability distribution (APD) model includes: an APD curve calculation unit for calculating an APD curve of an APD model for noise of an electronic device; and a linearity determination unit for determining a linearity of a slope of the APD curve calculated by the APD curve calculation unit. The apparatus further includes a variance processing unit for selectively performing equivalent variance processing or different variance processing based on the linearity determination result obtained from the linearity determination unit.
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