Commissariat a L'energie Atomique

Thomas Dautremer

Eric Barat

Jean-Christophe Trama

Thomas Trigano

Thomas Brisset

The invention proposes a method of processing a noisy digital time signal ycorresponding to an initial time signal xafter having been conditioned by a conditioning chain, the said initial signal xrepresenting information about radiations coming from a radiation source, these radiations having an energy distribution, characterised in that a state model is implemented, representing the conditioning imposed by the said chain to pass from the initial time signal xto the noisy digital time signal yin order to obtain from the noisy digital time signal ya non-noisy digital estimate signal of the initial time signal x. The invention furthermore proposes a system capable of implementing said method.

Processing of a signal representing radiation

The invention relates to a method of measurement, comprising treatment of a signal consisting of a succession of temporally spaced main pulses, having a duration D and energy E, which can each consist of a stack of elementary pulses having a duration Di and whose energy is evaluated by a variable Ei having an additivity property, wherein said elementary pulses have instants of appearance Ti following a homogeneous Poisson process of an intensity &#x3bb;, characterized in that said method comprises the following steps: digitization of the signal; measurement of the duration D and energy E for each main pulse in order to create duration-energy pairs (D,E); determination of the energy pairs (Di,Ei) of the elementary pulses from the constructed pairs (D, E); deduction of energy Ei of each elementary pulse from the determined pairs (Di,Ei). The invention also relates to a signal analysis device comprising means which can implement the method according to the invention.

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Paris, France

Thomas Dautremer