Metravib R.d.s.

Joël Millet

Alfred Permuy

A method of detecting and locating noise sources each emitting respective signals Swith j=1 to M, detection being provided by a sound wave or vibration sensors each delivering a respective time-varying electrical signal swith i in the range 1 to N, wherein the method steps include: (a) taking the time-varying electrical signals delivered by the sensors, each signal s(t) delivered by a sensor being the sum of the signals Semitted by the noise sources; (b) amplifying and filtering the time-varying electrical signals as taken; (c) digitizing the electrical signals; (d) calculating a functional; and (e) minimizing the functional relative to the vectors nfor j=1 to M so as to determine the directions of vector nof the noise sources.

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Montalieu-Vercieu, France

Joël Millet