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85 条记录 (耗时 0.019 秒)

    Sound source distance estimation
    3.
    发明授权
    Sound source distance estimation 有权

    公开(公告)号：US11644528B2

    公开(公告)日：2023-05-09

    申请号：US16626242

    申请日：2018-06-13

    申请人： NOKIA TECHNOLOGIES OY

    发明人： Antti Eronen ,  Arto Lehtiniemi ,  Tapani Pihlajakuja ,  Jussi Leppänen

    IPC分类号： G10L25/18 ,  G01S5/28 ,  H04R1/40 ,  H04R3/00 ,  H04R3/04

    CPC分类号： G01S5/28 ,  G10L25/18 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2430/03

    摘要： An apparatus for generating at least one distance estimate to at least one sound source within a sound scene comprising the least one sound source, the apparatus configured to: receive at least two audio signals from a microphone array located within the sound scene; receive at least one further audio signal associated with the at least one sound source; determine at least one portion of the at least two audio signals from a microphone array corresponding to the at least one further audio signal associated with the at least one sound source; determine a distance estimate to the at least one sound source based on the at least one portion of the at least two audio signals from a microphone array corresponding to the at least one further audio signal associated with the at least one sound source.

    Method for positioning underwater objects and system for the implementation thereof
    5.
    发明授权
    Method for positioning underwater objects and system for the implementation thereof 有权

    公开(公告)号：US10989815B2

    公开(公告)日：2021-04-27

    申请号：US15758418

    申请日：2016-09-06

    申请人： UNDERWATER COMMUNICATIONS & NAVIGATION LABORATORY (LIMITED LIABILITY COMPANY)

    发明人： Stanislav Mikhailovich Dmitriev ,  Alexander Vasilievich Dikarev

    IPC分类号： G01S19/45 ,  G01S19/48 ,  G01C21/00 ,  G01S5/00 ,  G01S5/28 ,  G01S1/80 ,  G01S5/26 ,  G01S5/30

    摘要： The present group of inventions relates to methods and systems for positioning underwater objects, and more particularly to methods and systems in which satellite signals are received by receivers disposed on sonar buoys, the coordinates of the sonar buoys are determined by means of computation modules on the sonar buoys, location data and identification data are transmitted in the form of sonar signals emitted by transmitters on the sonar buoys, the signals are received with the aid of a receiver disposed on an underwater object, and the coordinates of the underwater object are determined according to the time delay of receipt of the sonar signals from the sonar buoys, the location of which is known. The present solution can be used in simultaneously determining the geographical position of an unlimited number of mobile underwater objects, remotely operated underwater vehicles, divers, marine animals, etc. in motion. According to the invention, signals from the aforementioned sonar buoys are encoded in the form of periodic signals tethered to GPS/GLONASS clocks, all transmitters of the sonar signals are disposed at the same depth, and during decoding of the signals from the sonar buoys, direct signals from the sonar buoys are isolated from reflected signals. The system implements the aforementioned method. The achieved technical result is more accurate positioning of the underwater objects.

    System and method for detecting aerial vehicle position and velocity via sound
    7.
    发明授权
    System and method for detecting aerial vehicle position and velocity via sound 有权

    公开(公告)号：US10473752B2

    公开(公告)日：2019-11-12

    申请号：US15490939

    申请日：2017-04-19

    申请人： SZ DJI TECHNOLOGY CO., LTD.

    发明人： Jiebin Xie ,  Cong Zhao

    IPC分类号： G01S5/28 ,  G01S11/14 ,  H04R1/04 ,  H04R1/40 ,  H04R3/00 ,  H04R3/04

    摘要： A system for determining a signal source position and velocity, and methods for manufacturing and using same are provided. An exemplary method includes determining a signal source position and velocity by performing a direction analysis on a plurality of audio signals and performing an intensity analysis on the audio signals. Another exemplary method includes determining that a signal source is on a collision course with a moving platform and providing an instruction for altering the course of the moving platform to avoid a collision with the signal source. An exemplary system includes an acoustic sensing system, having a primary microphone array, a secondary microphone, and a processing device for determining a signal source position and velocity by performing a direction analysis on a plurality of audio signals and performing an intensity analysis on the audio signals.

    Data transmission method for ocean acoustic tomography
    10.
    发明授权
    Data transmission method for ocean acoustic tomography 失效
    海洋断层扫描数据传输方法

    公开(公告)号：US4805160A

    公开(公告)日：1989-02-14

    申请号：US89983

    申请日：1987-08-27

    申请人： Shin-ichi Ishii ,  Gentaroh Kai ,  Toshiaki Hara ,  Iwao Nakano

    发明人： Shin-ichi Ishii ,  Gentaroh Kai ,  Toshiaki Hara ,  Iwao Nakano

    IPC分类号： G08C17/00 ,  G01S5/18 ,  G01S5/28 ,  G01S15/88 ,  G01V1/22 ,  G01V1/00 ,  H04B13/02

    CPC分类号： G01V1/22

    摘要： The present invention enables tomography data in the sea to be collected and transmitted via an artificial satellite to a ground station. Accordingly, data on the Doppler phenomenon and shift of a sound wave is also obtainable based on the temperature and density of sea water and an ocean current. This makes it possible to obtain information about a wide sea area, such as the relationship between the KUROSHIO and the El nino which is now attracting attention in relation to fishery, agriculture and abnormal weather. Hence, the present invention will be of wide application.

    摘要翻译： 本发明使得海中的断层摄影数据能够被收集并经由人造卫星传送到地面站。 因此，基于海水的温度和密度以及海洋电流，也可获得关于多普勒现象和声波偏移的数据。 这样就可以获得关于广泛海域的信息，例如库鲁索与当前在渔业，农业和异常天气方面正在引起关注的厄尔尼诺之间的关系。 因此，本发明将得到广泛的应用。