Method and apparatus for frame synchronization in a positioning system
    1.
    发明授权
    Method and apparatus for frame synchronization in a positioning system 有权
    定位系统中帧同步的方法和装置

    公开(公告)号:US09287921B2

    公开(公告)日:2016-03-15

    申请号:US14457497

    申请日:2014-08-12

    Abstract: A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern.

    Abstract translation: 提供了一种在导航接收机中进行软帧同步的方法。 计算由导航接收机接收的同步模式的位之间的距离和已知的同步模式。 分配基于距离的接收到的同步图案的检测值的概率。 计算使用检测值概率的接收到的同步模式的置信度。 将置信水平与置信度阈值进行比较。 如果置信水平大于或等于置信阈值,则更新所接收的同步模式的置信水平以产生同步模式的可信度。 将接收到的同步码型的可信度与预定的可信度值进行比较,并且如果所接收的同步码型的可信度大于或等于预定的可信度值,则使用所接收的同步码型执行导航接收机的同步。

    METHOD AND APPARATUS FOR FRAME SYNCHRONIZATION IN A POSITIONING SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS FOR FRAME SYNCHRONIZATION IN A POSITIONING SYSTEM 有权
    定位系统中帧同步的方法和装置

    公开(公告)号:US20150124856A1

    公开(公告)日:2015-05-07

    申请号:US14457497

    申请日:2014-08-12

    Abstract: A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern.

    Abstract translation: 提供了一种在导航接收机中进行软帧同步的方法。 计算由导航接收机接收的同步模式的位之间的距离和已知的同步模式。 分配基于距离的接收到的同步图案的检测值的概率。 计算使用检测值概率的接收到的同步模式的置信度。 将置信水平与置信度阈值进行比较。 如果置信水平大于或等于置信阈值,则更新所接收的同步模式的置信水平以产生同步模式的可信度。 将接收到的同步码型的可信度与预定的可信度值进行比较,并且如果所接收的同步码型的可信度大于或等于预定的可信度值,则使用所接收的同步码型执行导航接收机的同步。

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