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176 条记录 (耗时 0.011 秒)

    Fornia
    92.
    发明授权
    Fornia 失效

    公开(公告)号：US1730577A

    公开(公告)日：1929-10-08

    申请号：US1730577D

    IPC分类号： G01S3/06

    CPC分类号： G01S3/065

    Direction detection device, method of acquiring intensity difference table, direction detection method, and computer-readable storage medium
    98.
    发明授权
    Direction detection device, method of acquiring intensity difference table, direction detection method, and computer-readable storage medium 有权

    公开(公告)号：US11796624B2

    公开(公告)日：2023-10-24

    申请号：US17693742

    申请日：2022-03-14

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Noriyasu Kato

    IPC分类号： G01S3/06 ,  G01S3/28 ,  G01S3/04 ,  G01S3/14 ,  G01S3/48

    CPC分类号： G01S3/06 ,  G01S3/043 ,  G01S3/146 ,  G01S3/28 ,  G01S3/48

    摘要： A direction detection device includes: antennas that receive a received wave; an intensity difference imparting unit that imparts intensity differences different depending on the received-wave arrival direction to intensities of the received wave; a storage unit that stores an intensity difference table in which the intensity difference between two of the antennas is associated with the received-wave arrival direction, for each combination of any two of the antennas; a detector that detects an intensity difference between the two antennas and a phase difference between the two antennas, of the received wave; an extractor that extracts, from the table, a received-wave arrival direction corresponding to the detected intensity difference, for each combination; a calculation unit that calculates a received-wave arrival direction corresponding to the detected phase difference; and a comparator that compares the extracted received-wave arrival direction with the calculated received-wave arrival direction to acquire a matched received-wave arrival direction.

    DYNAMIC SWITCH PATTERN SELECTION FOR ANGLE OF ARRIVAL
    99.
    发明申请
    DYNAMIC SWITCH PATTERN SELECTION FOR ANGLE OF ARRIVAL 有权

    公开(公告)号：US20210399775A1

    公开(公告)日：2021-12-23

    申请号：US16904941

    申请日：2020-06-18

    申请人： Silicon Laboratories Inc.

    发明人： Sauli Johannes Lehtimaki

    IPC分类号： H04B7/06 ,  H04W4/80 ,  G01S3/10 ,  G01S3/48 ,  G01S3/06

    摘要： A device and method for improving the accuracy of angle of arrival and departure computations is disclosed. The device and method rely on manipulation of the antenna switching pattern to achieve an improved calculation of arrival angle. In one embodiment, the device calculates an estimate angle of arrival using conventional methods. The device then determines which of a plurality of different antenna switching pattern yields the more accurate results at this estimated angle of arrival. The AoA measurement is then repeated using the preferred antenna switching pattern. In another embodiment, the device captures the amplitude and/or phase of the signal from each antenna element. The device then sorts these antenna elements and defines a preferred antenna switching pattern based on the sort list. The AoA measurement is then performed using the preferred antenna switching pattern. In another embodiment, neural networks may be utilized to determine the preferred antenna switching pattern.