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Article | REF: R310 V1

Background noise and measurements - Theoretical aspects

Authors: Matteo VALENZA, Fabien PASCAL, Alain HOFFMANN

Publication date: December 10, 2006

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1. Reminders: random functions and linear filtering

1.1 Random functions and background noise

  • The random signalsX (t ), referred to as "background noise", are stationary random signals of order 2, i.e. with at least the first two moments independent of time, i.e. E {X } and E {X 2 } (the mathematical expectations).

    Recall that the variance

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Reminders: random functions and linear filtering
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