Method for localizing a marine mammal in an underwater environment implemented by a PAM system, corresponding device, computer program product and non-transitory computer-readable carrier medium

A method for localizing a marine animal in an underwater environment implemented by a first passive acoustic monitoring system, the first passive acoustic monitoring system comprising a network of acoustic sensors adapted to carry out measurements of acoustic signals, wherein the method comprises:

• obtaining, from the network of acoustic sensors, a first set of measured data of an acoustic signal emitted by a marine animal;
• defining a space of dimensional representation of the underwater environment discretized in a plurality of predefined cells, for each cell of a predefined set of cells among said plurality, obtaining an error corresponding to a deviation between:
• at least some of said measured data of the first set and corresponding theoretical data obtained by assuming that the marine animal is located in said cell, wherein the method comprises determining a value of localization of the marine animal as a function of said errors, wherein the method further comprises the steps of:
• determining among said predefined set of cells, a subset of cells corresponding to a zone of uncertainty of localization of the marine animal, said subset of cells being determined in function of the errors associated to the cells, comparing the subset of cells corresponding to the zone of uncertainty of localization with a subset of cells corresponding to a predefined safety exclusion zone.