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    UNMANNED AERIAL VEHICLE, METHOD AND APPARATUS FOR FILTERING IN RANGING OF THE SAME, AND RANGING METHOD
    13.
    发明申请
    UNMANNED AERIAL VEHICLE, METHOD AND APPARATUS FOR FILTERING IN RANGING OF THE SAME, AND RANGING METHOD 审中-公开

    公开(公告)号：US20170269207A1

    公开(公告)日：2017-09-21

    申请号：US15610763

    申请日：2017-06-01

    Applicant: GUANGZHOU XAIRCRAFT TECHNOLOGY CO., LTD.

    Inventor： Yousheng CHEN

    IPC: G01S15/08 ,  G01C21/12 ,  G01S15/60 ,  B64C39/02

    CPC classification number: G01S15/08 ,  B64C39/024 ,  B64C2201/141 ,  G01C21/12 ,  G01S15/60 ,  G01S15/93

    Abstract: A method for filtering in ranging of a UAV is provided, which is based on a characteristic that velocities of the UAV change continuously during a moving process. A current velocity of the UAV is obtained via seeking difference of distances measured by the sensor, then a variance of continuous velocities is calculated and it is determined whether a current distance is valid according to the variance. The general process of the method is as follows. First, initial distances measured by the sonar sensor are acquired, secondly, it is determined whether a new distance is valid according to the initial distances, if the new distance satisfies a curtain condition, the new distance is considered to be valid and the initial distances are updated; if the new distance does not satisfy the curtain condition, a distance is estimated and used as the current distance and the initial distances are maintained.

    Collinear system to determine its own displacement from its own motion
    15.
    发明授权
    Collinear system to determine its own displacement from its own motion 有权

    公开(公告)号：US09753049B1

    公开(公告)日：2017-09-05

    申请号：US14477945

    申请日：2014-09-05

    Applicant: Non-Inertial Technology, LLC

    Inventor： Val Parker

    IPC: G01B11/14 ,  G01P3/36

    CPC classification number: G01P3/36 ,  G01B11/14 ,  G01C21/12 ,  G01P3/68

    Abstract: A light beam or other electromagnetic medium is emitted, guided, and received, all within a unitary system frame. The beam retains its characteristics regardless of position or motion of the frame in which it propagates. The beam retains its position in space relative to the detection of motion of the frame. Because the frame and the beam emitted within it are in the same frame of reference, characteristics of their motion are compared to determine parameters including system velocity and planetary velocity which is useful in navigation. Position, orientation, displacement, velocity of an object in motion, and changes in these parameters relative to previous values thereof, are derived from information provided within and directly by the motion of the unitary system itself.

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