INTER-SATELLITE LINK ACQUISITION SUPPORTED BY MACHINE VISION

    公开(公告)号:US20210396888A1

    公开(公告)日:2021-12-23

    申请号:US16908993

    申请日:2020-06-23

    Abstract: The present invention provides a method and apparatus used to reduce the estimated field of uncertainty of satellite positions in space. This reduced field of uncertainty estimate reduces link acquisition time of satellites as they establish inter-satellite optical links between each other. The method and apparatus reduces the estimated field of uncertainty by combining estimated field of uncertainty generated by multiple independent sources. The method further includes combining estimated field of uncertainty generated using existing field of uncertainty techniques with estimated filed of uncertainty created by a machine vision detection and location module. This machine vision detection and location module generates an estimated field of uncertainty that is a result of executing of one or more algorithms to process digital imagery data provided by a passive digital camera.

    DEEP LEARNING FOR SOFTWARE DEFECT IDENTIFICATION

    公开(公告)号:US20190317879A1

    公开(公告)日:2019-10-17

    申请号:US15953650

    申请日:2018-04-16

    Abstract: A neural network for identifying defects in source code of computer software. The neural network comprises: at least one convolutional layer configured to generate a one or more feature abstractions associated with an input segment associated with the source code; at least one recurrent layer configured to identify within the one or more feature abstractions a pattern indicative of a defect in the source code; and at least one mapping layer configured to generate a mapping between the identified pattern and a location of the indicated defect in the source code.

    SYSTEM AND METHOD FOR SELF ORGANIZING DATA CENTER

    公开(公告)号:US20180321981A1

    公开(公告)日:2018-11-08

    申请号:US15792577

    申请日:2017-10-24

    CPC classification number: G06F9/5038 G06F9/44505 G06F9/5077 G06F9/5083

    Abstract: A self organizing data center comprising: a plurality of services, each service configured to select and modify its placement; and a plurality of servers, each server configured to select and modify its resource allocation to each placement. A service or service application executing in the data center can request to modify its resource allocation. The data center, upon receiving a request to modify the resource allocation, runs an auction among the services and determines the proposed new resource allocation and its conditions. The service transmits an answer to the data server and if the answer indicates acceptance of the new resource allocation, the data center implements the new resource allocation.

    PACKET FORWARDING INCORPORATING PARTIAL SORTING OF PATH COSTS OR UTILITIES

    公开(公告)号:US20210376914A1

    公开(公告)日:2021-12-02

    申请号:US16882952

    申请日:2020-05-26

    Abstract: A method and apparatus for routing packets in a network, such as a satellite mesh network. For each one of multiple destination devices capable of further handling of the packet for routing to a destination (e.g. ground station) a respective cost or utility associated with forwarding the packet to that destination device is determined. For a given value k, an unsorted subset of k of the destination devices for which said costs are lowest or said utilities are highest is determined, without necessarily fully sorting the plurality of destination devices by cost or utility. The data packet is then forwarded to a selected one of this subset of destination devices. Cost may correspond to distance from destination device (e.g. satellite) to the further destination. Sorting networks and selector networks can be used, for example as implemented in hardware, to generate the unsorted subset.

    METHOD AND APPARATUS FOR SUPPORTING ESTIMATION OF LINK ACQUISITION TIME IN SATELLITE-BASED NETWORKS

    公开(公告)号:US20210382178A1

    公开(公告)日:2021-12-09

    申请号:US16896285

    申请日:2020-06-09

    Abstract: The present invention provides a method and apparatus for supporting estimation of inter-satellite link acquisition times in a satellite constellation. The method includes computing or generating an indication of a statistical model based on observations for prior link acquisition times. The method further includes communicating an indication such as a statistical model for link acquisition times or related parameters through a communication network, or a combination thereof. The indication may be communicated using one or more transmission techniques or protocols, such as flooding, a link state protocol or gossip protocol. Based on the disseminated indication, future link acquisition times can be predicted by satellites in the satellite constellation. Embodiments of the invention use a statistical-based computation approach, such as regression modelling or random variable modelling, to estimate link acquisition times or associated estimation parameters. The estimates or associated estimation parameters may then be disseminated through the constellation.

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