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81 条记录 (耗时 0.021 秒)

    Method for positioning underwater objects and system for the implementation thereof
    2.
    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
    4.
    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
    7.
    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。

    Device for determining the relative position of elongate members towed behind a ship
    8.
    发明授权
    Device for determining the relative position of elongate members towed behind a ship 失效
    用于确定拖在船后面的细长构件的相对位置的装置

    公开(公告)号：US4187492A

    公开(公告)日：1980-02-05

    申请号：US850835

    申请日：1977-11-11

    申请人： Robert Delignieres

    发明人： Robert Delignieres

    IPC分类号： G01B17/00 ,  G01S3/80 ,  G01S3/808 ,  G01S5/18 ,  G01S5/28 ,  G01S11/14 ,  G01V1/16 ,  G01V1/38

    CPC分类号： G01V1/3835 ,  G01B17/00 ,  G01S5/18

    摘要： Device for determining the relative position of at least one seismic streamer comprising acoustic pulse sensors, with respect to a seismic streamer comprising acoustic pulse transmitters, all of said streamers being towed behind a ship, comprising a telemetrical system for measuring the distance between pulse sensors and pulse transmitters by the determination of the travel time of pulses between different pulse transmitters and corresponding pulse sensors and a viewing system for displaying the so-measured distance.

    摘要翻译： 用于确定包括声脉冲传感器的至少一个地震拖缆的相对位置的装置，相对于包括声脉冲发射器的地震拖缆，所有拖缆被拖在船后面，包括用于测量脉冲传感器之间的距离的遥测系统和 通过确定不同脉冲发射器与相应的脉冲传感器之间的脉冲的行进时间和用于显示所测量的距离的观察系统来确定脉冲发射器。

    Signal discriminating device
    9.
    发明授权
    Signal discriminating device 失效
    信号识别装置

    公开(公告)号：US3893064A

    公开(公告)日：1975-07-01

    申请号：US34548973

    申请日：1973-03-28

    申请人： HITACHI LTD

    发明人： NISHIHARA MOTOHISA ,  KATO YOMEI

    IPC分类号： G01S5/18 ,  G01S5/28 ,  G01S5/30 ,  G01S7/02 ,  G01S7/292 ,  G01S7/36 ,  G01S11/02 ,  G01S11/00

    CPC分类号： G01S7/2923 ,  G01S5/30 ,  G01S7/2921 ,  Y10S367/901

    摘要： A signal discriminating device comprising a band-pass filter for selectively passing a signal-frequency component at a predetermined frequency and another band-pass filter for selectively passing a noise-frequency component at a frequency other than but close to the signal frequency, wherein the discrimination of signal from noise is effected on the basis of existance or non-existance of the signal-frequency component and the noise-frequency component in such a manner that when only the signal-frequency component is detected the reception of signal is determined and when both the signal-frequency component and the noise-frequency component are simultaneously detected the reception of noise is determined.

    摘要翻译： 一种信号识别装置，包括用于选择性地使预定频率的信号频率分量通过的带通滤波器和用于选择性地以不同于但接近于信号频率的频率通过噪声频率分量的带通滤波器，其中， 基于信号频率分量和噪声频率分量的存在或不存在，来区分来自噪声的信号，使得当仅检测到信号频率分量时，确定信号的接收和何时 同时检测信号频率分量和噪声频率分量，确定噪声的接收。

    Optical isolator
    10.
    发明授权
    Optical isolator 失效
    光学隔离器

    公开(公告)号：US3559101A

    公开(公告)日：1971-01-26

    申请号：US3559101D

    申请日：1964-02-12

    申请人： US NAVY

    发明人： PARKER DONALD J ,  KORNSTEIN EDWARD

    IPC分类号： G01S5/28 ,  G02B26/00 ,  G02B26/02 ,  H01S3/00 ,  G02F1/28

    CPC分类号： G02B26/02 ,  G01S5/28 ,  G02B26/001

    摘要： AN OPTICAL ISOLATOR FOR DEVICES THAT EMIT COHERENT ELECTROMAGNETIC RADIATION BY STIMULATED EMISSION OF RADIATION, COMRISING: (A) MEANS, INCLUDING A PRISM HAVING A PREDETERMINED PATH FOR COHERENT RADIATION AT A GIVEN WAVE LENTH, (B) A REFLECTIVE SURFACE OF SAID PRISM IN SAID PATH, (C) A SUPPORT MEMBER HOLDING SAID PRISM, (D) AN ELECTROSTRICTIVE MEMBER HAVING FIRST AND SECOND PARALLEL SURFACES MOUNTED ON SAID SUPPORT MEMBER, SAID FIRST AND SECOND SURFACES BEING PARALLEL TO SAID REFLECTIVE SURFACE, (E) AN ABSORBER MOUNTED ON ONE OF SAID PARALLEL SURFACES OF SAID ELECTROSTRICTIVE MEMBER ADJACENT SAID REFLECTIVE SURFACE, (F) AN ACOUSTICAL TERMINATION MEMBER MOUNTED ON STRICTIVE MEMBER, AND (G) MEANS COUPLED TO SAID ELECTROSTRICTIVE MEMBER TO MOVE SAID BETWEEN ONE-TENTH AND ONE AND ONE-QUARTER OF SAID GIVEN WAVE LENGTH OF SAID REFLECTIVE SURFACE TO VARY THE REFLECTANCE FROM SAID REFLECTIVE SURFACE.