A simple example of elementary decisions
Noisy signal processing methods

Problem

A "personalized" distress beacon can be manifested by several signals, which, after sampling and shaping, are translated into :

• a discrete signal, ∀ k, S _g (k ) = γ, reflecting operation in a gaseous medium, the actual value of γ (γ ∊]0, A]) being equal to the absolute temperature of the medium ;

• a discrete signal, ∀ k, S _a (k ) = (– 1) ^k , reflecting operation in an aqueous medium ;

• an absence of signal (which can be translated as a discrete signal, ∀ k, S ₀ (k ) = 0), translating the absence of operation.

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