| 摘要 |
A method for automatically detecting marine animals, carried out by a detection device, comprises : - a step of obtaining acoustic signal measurements (1) collected by at least one acoustic sensor in a underwater environment; - at least one of a first branch (3) for detecting frequency modulated sounds and a second branch (4) for detecting impulsive sounds; each branch comprising a step of detecting sounds by: implementing in parallel several detection channels each having a different and fixed value for at least one degree of freedom; selecting the detection channel having a maximum signal to noise ratio; and comparing the signal to noise ratio of the selected detection channel to a determined threshold; - a step (32, 42, 5) of taking an alarm decision, indicating the presence of at least one marine animal, as a function of an output of the first branch and/or an output of the second branch. |
