CARRIER-PHASE SMOOTHING OF CODE-PHASE MEASUREMENTS

    公开(公告)号:US20180067214A1

    公开(公告)日:2018-03-08

    申请号:US15258301

    申请日:2016-09-07

    CPC classification number: G01S19/43 G01S19/29 G01S19/30

    Abstract: An example of a method of determining a position of a device includes: receiving, with a receiver of the device, a signal from a reference emitter; obtaining a code phase measurement of the signal; obtaining a carrier phase measurement of the signal; calculating an intermediate quantity that is a function of the code phase measurement and the carrier phase measurement; calculating a carrier phase smoothed estimate of a code phase of the signal based, at least in part, on a robust aggregation of the intermediate quantity; and determining the position of the device based, at least in part, on the carrier phase smoothed estimate of the code phase.

    LOCATION AND RANGE DETERMINATION USING BROADCAST MESSAGES
    13.
    发明申请
    LOCATION AND RANGE DETERMINATION USING BROADCAST MESSAGES 审中-公开
    使用广播信息的位置和范围确定

    公开(公告)号:US20160277197A1

    公开(公告)日:2016-09-22

    申请号:US14848160

    申请日:2015-09-08

    CPC classification number: H04L12/18 G01S5/0063 G01S5/02 H04W64/00

    Abstract: Disclosed are implementations that include a method, at a mobile device, including receiving multiple broadcast messages transmitted by multiple stationary wireless devices, and obtaining first information relating to each of the multiple broadcast messages, with at least some of the first information being included in the multiple broadcast messages, and second information relating to at least one earlier broadcast communication received by at least one of the multiple stationary wireless devices, prior to transmission of the at least one of the multiple broadcast messages, from at least one other of the multiple stationary wireless devices, with the second information included in the at least one of the multiple broadcast messages. The method also include determining location information for the mobile device based on the first information, the second information, and known positions of at least some of the multiple stationary wireless devices.

    Abstract translation: 公开了包括在移动设备处的方法的实现方式,包括接收由多个固定无线设备发送的多个广播消息,以及获得与多个广播消息中的每一个相关的第一信息,其中至少一些第一信息被包括在 多个广播消息,以及与多个固定无线设备中的至少一个所接收的至少一个较早的广播通信相关的第二信息,在多个广播消息中的至少一个广播消息之间从多个静止无线设备中的至少一个传输 无线设备,其中第二信息包括在多个广播消息中的至少一个中。 该方法还包括基于第一信息,第二信息和多个固定无线设备中的至少一些的已知位置来确定移动设备的位置信息。

    VISUAL FEATURE SHARING FOR RELATIVE POSE
    14.
    发明公开

    公开(公告)号:US20240078808A1

    公开(公告)日:2024-03-07

    申请号:US17902325

    申请日:2022-09-02

    CPC classification number: G06V20/50 H04W88/02

    Abstract: Aspects relate to techniques for visual feature sharing between wireless communication devices for relative pose determination. A first wireless communication device may transmit a request for visual feature sharing to a second wireless communication device and in response receive a message from the second wireless communication device including a plurality of features (e.g., keypoints) of an image captured by the second wireless communication device. The first wireless communication device may then calculate a relative pose of the first wireless communication device with respect to the second wireless communication device based on an association between the features provided by the second wireless communication device and additional features obtained from an additional image captured by the first wireless communication device.

    ESTIMATING AND TRANSMITTING OBJECTS CAPTURED BY A CAMERA

    公开(公告)号:US20230360258A1

    公开(公告)日:2023-11-09

    申请号:US18311187

    申请日:2023-05-02

    Abstract: A wireless device may obtain, from a camera, an image with at least one captured object, which may include a plurality of dimensions. The image may include a 2D projection of the at least one captured object. The wireless device may calculate at least one dimension of the plurality of dimensions of the at least one captured object based on the 2D projection of the at least one captured object. The wireless device may estimate an inverse depth of the plurality of dimensions of the at least one captured object based on information associated with one or more properties of the camera or of at least one reference object associated with the at least one captured object. The wireless device may transmit an indication of the plurality of dimensions of the at least one captured object including the calculated at least one dimension and the estimated inverse depth.

    POSITION-WINDOW EXTENSION FOR GNSS AND VISUAL-INERTIAL-ODOMETRY (VIO) FUSION

    公开(公告)号:US20230077470A1

    公开(公告)日:2023-03-16

    申请号:US18057157

    申请日:2022-11-18

    Abstract: Techniques provided herein are directed toward virtually extending an updated set of output positions of a mobile device determined by a VIO by combining a current set of VIO output positions with one or more previous sets of VIO output positions in such a way that ensure all outputs positions among the various combined sets of output positions are consistent. The combined sets can be used for accurate position determination of the mobile device. Moreover, the position determination further may be based on GNSS measurements.

    OBJECTION DETECTION USING IMAGES AND MESSAGE INFORMATION

    公开(公告)号:US20220405952A1

    公开(公告)日:2022-12-22

    申请号:US17547366

    申请日:2021-12-10

    Abstract: Disclosed are techniques for performing object detection and tracking. In some implementations, a process for performing object detection and tracking is provided. The process can include steps for obtaining, at a tracking object, an image comprising a target object, obtaining, at the tracking object, a first set of messages associated with the target object, determining a bounding box for the target object in the image based on the first set of messages associated with the target object, and extracting a sub-image from the image. In some approaches, the process can further include steps for detecting, using an object detection model, a location of the target object within the sub-image. Systems and machine-readable media are also provided.

    MAP-AIDED SATELLITE SELECTION
    18.
    发明申请

    公开(公告)号:US20220276394A1

    公开(公告)日:2022-09-01

    申请号:US17186410

    申请日:2021-02-26

    Inventor: Urs NIESEN

    Abstract: Techniques for map-aided satellite selection are provided. An example of a method for determining a location according to the disclosure includes determining a future trajectory of a user equipment, estimating an environment model associated with the future trajectory, determining a plurality of expected navigation satellites based on the future trajectory and the environment model, selecting a set of navigation satellites to use in computing the current location based in part on the plurality of expected navigation satellites, and computing the current location based on the selected set of navigation satellites.

    RADAR-AIDED SINGLE IMAGE THREE-DIMENSIONAL DEPTH RECONSTRUCTION

    公开(公告)号:US20220180537A1

    公开(公告)日:2022-06-09

    申请号:US17678955

    申请日:2022-02-23

    Abstract: Disclosed are techniques for radar-aided single-image three-dimensional (3D) depth reconstruction. In an aspect, at least one processor of an on-board computer of an ego vehicle receives, from a radar sensor of the ego vehicle, at least one radar image of an environment of the ego vehicle, receives, from a camera sensor of the ego vehicle, at least one camera image of the environment of the ego vehicle, receives, from a light detection and ranging (LiDAR) sensor of the ego vehicle, at least one LiDAR image of the environment of the ego vehicle, and generates a depth image of the environment of the ego vehicle based on the at least one radar image, the at least one LiDAR image, and the at least one camera image.

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