公开(公告)号：US09625592B2

公开(公告)日：2017-04-18

申请号：US14296009

申请日：2014-06-04

Applicant: SERCEL

Inventor： Christophe L'Her ,  Simon Vallez ,  Veronique L'Her Marrec

IPC: G01V1/00

CPC classification number: G01V1/001 ,  G01V2210/1293 ,  G01V2210/1423

Abstract: A method for localizing a marine animal in an underwater environment implemented by a passive acoustic monitoring (PAM) system. The passive acoustic monitoring system includes network of acoustic sensors adapted to carry out measurements of acoustic signals. The method includes: obtaining, from the network of acoustic sensors, 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, obtaining an error defined as a value of a cost function for the cell, the cost function giving a deviation between: at least some of the measured data; and corresponding theoretical data obtained by assuming the marine animal is located in the cell, the errors obtained for the predefined set of cells enabling to obtain at least one piece of information about localization of the marine animal.

公开(公告)号：US20150260860A1

公开(公告)日：2015-09-17

申请号：US14296009

申请日：2014-06-04

Applicant: SERCEL

Inventor： Christophe L'Her ,  Simon Vallez ,  Veronique L'Her Marrec

IPC: G01V1/00

CPC classification number: G01V1/001 ,  G01V2210/1293 ,  G01V2210/1423

Abstract: A method for localizing a marine animal in an underwater environment implemented by a passive acoustic monitoring (PAM) system. The passive acoustic monitoring system includes network of acoustic sensors adapted to carry out measurements of acoustic signals. The method includes: obtaining, from the network of acoustic sensors, 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, obtaining an error defined as a value of a cost function for the cell, the cost function giving a deviation between: at least some of the measured data; and corresponding theoretical data obtained by assuming the marine animal is located in the cell, the errors obtained for the predefined set of cells enabling to obtain at least one piece of information about localization of the marine animal.

Abstract translation: 一种用于通过无源声学监测（PAM）系统实现的在水下环境中定位海洋动物的方法。 无源声学监测系统包括适于执行声学信号测量的声传感器网络。 该方法包括：从声传感器网络获得由海洋动物发出的声信号的测量数据; 定义对于预定义集合的每个小区在多个预定义小区中离散化的水下环境的维度表示的空间，获得定义为小区的成本函数的值的错误，所述成本函数给出以下之间的偏差： 最少一些测量数据; 并且通过假设海洋动物获得的对应的理论数据位于细胞中，为预定义的一组细胞获得的误差能够获得关于海洋动物的定位的至少一条信息。

公开(公告)号：US10094940B2

公开(公告)日：2018-10-09

申请号：US15483463

申请日：2017-04-10

Applicant: SERCEL

Inventor： Christophe L'Her ,  Simon Vallez ,  Veronique L'Her Marrec

IPC: G01V1/00

Abstract: A method for localizing a marine animal in an underwater environment implemented by a passive acoustic monitoring (PAM) system. The passive acoustic monitoring system includes network of acoustic sensors adapted to carry out measurements of acoustic signals. The method includes: obtaining, from the network of acoustic sensors, 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, obtaining an error defined as a value of a cost function for the cell, the cost function giving a deviation between: at least some of the measured data; and corresponding theoretical data obtained by assuming the marine animal is located in the cell, the errors obtained for the predefined set of cells enabling to obtain at least one piece of information about localization of the marine animal.