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    SONAR TRANSDUCER HAVING GEOMETRIC ELEMENTS
    21.
    发明公开
    SONAR TRANSDUCER HAVING GEOMETRIC ELEMENTS 审中-公开

    公开(公告)号：EP4235217A3

    公开(公告)日：2023-12-06

    申请号：EP23170088.1

    申请日：2020-03-30

    申请人： Navico Holding AS

    发明人： ANTAO, Barry ,  PROCTOR, Alan ,  CASPALL, Jayme

    IPC分类号： G01S7/521 ,  G01S7/539 ,  G01S7/54 ,  G01S7/62 ,  G01S15/00 ,  G01S15/42 ,  G01S15/46 ,  G01S15/52 ,  G01S15/96

    摘要： A system is provided for imaging an underwater environment. The system includes a transducer assembly with at least one transmit transducer element and an array of receive transducer elements. Each receive transducer element is configured to receive sonar returns and form sonar return data. A sonar signal processor is configured to receive the sonar return data from each receive transducer element and generate sonar image data. The sonar return data from all of the receive transducer elements may be summed and used to form a high-definition 1D (e.g., time-based) sonar image. The sonar return data from only a subgroup may be summed and used to form a lower-definition 1D sonar image. In some systems, an array of series-connected transmit transducer elements can be used. The orientation of the emitting faces of the array may vary slightly to mimic a curved surface for increased beam coverage.

    SYSTEM AND METHOD FOR MEASURING DISTANCE USING ACOUSTIC SIGNAL
    23.
    发明公开
    SYSTEM AND METHOD FOR MEASURING DISTANCE USING ACOUSTIC SIGNAL 审中-公开

    公开(公告)号：EP3974866A1

    公开(公告)日：2022-03-30

    申请号：EP21162831.8

    申请日：2021-03-16

    申请人： Samsung Electronics Co., Ltd.

    发明人： KANG, Sungchan ,  KIM, Cheheung ,  SON, Daehyuk

    IPC分类号： G01S7/54 ,  G01S15/10 ,  G01S15/42 ,  G01S15/87

    摘要： Provided is a distance measurement system, including: at least one sound source configured to generate an acoustic signal; an acoustic sensor including a plurality of directional acoustic sensors arranged to have directionalities different from one another; and at least one processor configured to: obtain a directionality of the acoustic signal in a particular direction based on at least one of a sum of output signals of the plurality of directional acoustic sensors or a difference between the output signals of the plurality of directional acoustic sensors, the at least one of the sum or the difference being based on applying a weight to at least one of the output signals; and determine a distance between the acoustic sensor and a reflection surface based on a time for the acoustic signal to arrive at the acoustic sensor in the particular direction after being generated and then reflected from the reflection surface.

    Procédé de positionnement acoustique global d'une cible marine ou sous-marine
    26.
    发明公开
    Procédé de positionnement acoustique global d'une cible marine ou sous-marine 有权
    一种在水中或在水下目标的全球声波定位过程

    公开(公告)号：EP2515140A1

    公开(公告)日：2012-10-24

    申请号：EP12164865.3

    申请日：2012-04-20

    申请人： iXBlue Industries S.A.S.

    发明人： Pennec, Sébastien ,  Morvan, Pierre-Yves

    IPC分类号： G01S3/808 ,  G01S7/54 ,  G01S15/74

    CPC分类号： G01S3/8083 ,  G01S7/54 ,  G01S15/74

    摘要： La présente invention a objet un procédé de positionnement acoustique global de type USBL ou SBL d'une cible marine ou sous-marine, procédé présentant une précision meilleure que celle du procédé mis en oeuvre par des systèmes USBL ou SBL connus, tout en mettant en oeuvre un réseau de capteurs ayant les mêmes dimensions matérielles que celles de ces systèmes connus. L'invention exploite les déplacements du réseau de capteurs pour mettre en oeuvre les principes des traitements par antenne synthétique. Le principe de l'antenne synthétique transposé au présent problème consiste à utiliser les signaux reçus par les hydrophones d'une antenne physique disposée sur une plate-forme mobile à K instants différents successifs, et donc à K emplacements successifs pour fournir une estimation de la position de la balise grâce à une antenne de dimension virtuellement plus grande.

    摘要翻译： 该方法涉及当移动浮式平台的移动，其中，所述平台包括声学传感器（H1-H4）发射通过在用于询问信标声换能器（T1）的声脉冲。 惯性单元设置有一个逻辑控制器和一个多普勒速度。 信标的地理参考位置从所发射的声脉冲估计。 从声脉冲通过在声学天线接收的声脉冲之后的信标的一个独特的地理参考位置被确定开采。

    Method of and apparatus for providing information as to the existence and/or position of objects
    29.
    发明公开
    Method of and apparatus for providing information as to the existence and/or position of objects 失效
    用于确定的存在和/或对象的位置信息的方法和装置。

    公开(公告)号：EP0008120A1

    公开(公告)日：1980-02-20

    申请号：EP79102881.4

    申请日：1979-08-09

    申请人： Kay, Leslie

    发明人： Kay, Leslie

    IPC分类号： G01S7/54 ,  G01S13/34 ,  G01S15/34 ,  A61F9/08

    CPC分类号： G01S7/5345 ,  G01S13/34 ,  G01S15/34 ,  G09B21/006 ,  Y10S367/91

    摘要： A method of locating an object by wave energy reflection and an apparatus therefor in which receiving outer transducers (11R, 11L or 111R, 111L) provide directional receptivities represented by polar lobes diverging on opposite sides of a reference axis (15) and an inner receiving transducer (13 or simulated from 111R, 111L) provide a directional receptivity represented by a narrower polar lobe centered on the reference axis. The signals received from the outer transducers (11R, 11L or 111R, 111L) are operated upon in channels (II, 111) of the receiver to modulate them with a frequency swept local signal derived from the transmitted signal and develop indicator signals of difference frequency between the transmitted and received frequencies and which represent the range of the object. The outer signals are displayed binaurally, to enable the user to achieve firstly approximate directional sensing by binaural effect, and thereafter more accurate directional sensing by the use of signals developed in a central channel (IV) and derived from the inner transducer (13) or outer transducers (111R, 111L) simulating an inner transducer. Gain in channels (11 and III) fed from the outer transducers is preferably adjusted as an inverse function of signal strength in the channel (IV). Higher frequency components are preferably accentuated in the inner channel to improve object character recognition.