Device for localizing acoustic sources and/or measuring their intensities

摘要

Device for localizing acoustic sources and/or measuring their intensities, intended in particular to be used in confined spaces, the device including at least one acoustic antenna having a first series of microphones delimiting a first volume, and a second series of microphones delimiting a volume containing at least substantially the first series of microphones.

主权项

1. A device for localizing acoustic sources and/or measuring their intensities, intended in particular to be used in confined spaces, the localization device comprising:
at least one acoustic antenna comprising at least a first series of microphones distributed over a closed surface delimiting a first volume and at least one second series of microphones delimiting a volume containing at least substantially the first series of microphones, wherein the volume delimited by the second series of microphones contains the entirety of the first series of microphones; a processing system comprising means of focalization linked to means of interspectral calculation, designed to use focalization over a distribution of possible source points to process acoustic pressure measurement signals generated by the first and second series of microphones from the or each acoustic antenna and to carry out a multiplication operation, comprising a calculation of an interspectral sum of acoustic pressure backpropagation values, for each calculation source point obtained for the first and the second series of microphones for the or each acoustic antenna.