통신 신호에 대한 TDOA/FDOA 정보 추정 장치 및 방법
    2.
    发明公开
    통신 신호에 대한 TDOA/FDOA 정보 추정 장치 및 방법 有权
    2步FDOA / FDOA估计方法和设备

    公开(公告)号:KR1020160027698A

    公开(公告)日:2016-03-10

    申请号:KR1020140116097

    申请日:2014-09-02

    CPC classification number: G01S3/02 G01S3/46

    Abstract: 본발명은신호원의위치추정기술에관한것으로서, 더상세하게는두 수신단에서전송효율을고려하여획득한적은양의수신신호로부터 TDOA(time difference of arrival) 및/또는 FDOA(frequency difference of arrival) 추정을추정하는장치및 방법에대한것이다.

    Abstract translation: 本发明涉及一种信号源定位技术,更具体地涉及一种通过考虑传输效率来估计从接收到的少量信号估计到达时间差(TDOA)和/或频差(FDOA)的方法和装置 在两个接收机阶段。 本发明的两步TDOA / FDOA估计方法包括:(a)使用天线接收作为通信信号的多个接收信号的步骤; (b)使用所述多个接收信号的特性来设定TDOA和FDOA的初始估计值的步骤; (c)使用初始估计值和多个接收信号输出TDOA和FDOA信息的第一步估计值的步骤; (d)对所述多个接收信号进行插值的步骤; 以及(e)使用内插执行的多个接收信号和TDOA和FDOA信息的第一步估计值来输出TDOA和FDOA信息的第二步估计值的步骤。

    TDOA/FDOA를 이용한 Gauss-Newton기법기반 신호원 위치추정방법 및 이를 이용한 신호원 위치추정장치
    3.
    发明授权
    TDOA/FDOA를 이용한 Gauss-Newton기법기반 신호원 위치추정방법 및 이를 이용한 신호원 위치추정장치 有权
    基于使用TDOA / FDOA的GAUSS-NETWON方法的局部化方法和使用该方法的本地化装置

    公开(公告)号:KR101280513B1

    公开(公告)日:2013-07-01

    申请号:KR1020120129990

    申请日:2012-11-16

    Abstract: PURPOSE: A signal source location estimating method and a signal source location estimating apparatus using the same are provided to simultaneously use time difference of arrival (TDOA) and frequency difference of arrival (FDOA), thereby improving the accuracy of location estimation. CONSTITUTION: A signal source location estimating method includes following steps. A location and speed vector estimation value about the location and speed vector of a radar signal source is set, and an initial value about transmission value is set (S110). A TDOA and FDOA estimation value is calculated using the location and speed vector estimation value and the transmission value set by the initial value (S120). A difference value between a TDOA and FDOA measurement value measured in a receiving part and the TDOA and FDOA estimation value is calculated (S130). A Jacobian matrix is generated by differentiating each of a TDOA model equation and an FDOA model equation which are prepared in advance using the TDOA and FDOA estimation value (S140). A weighted value for altering the location and speed vector estimation value is calculated using the difference value and the Jacobian matrix, and the location and speed vector estimation value is altered using the weighted value (S150). In case the difference value is higher than a permissible threshold value or the repeated number of control procedures in previous steps is lower than a maximum value, the control procedures in the previous steps are performed again (S160). If the difference value is lower than the permissible threshold value and the repeated number of the control procedures is higher than the maximum value, an altered location and speed vector estimation value is determined as a final location speed vector of the radar signal source (S170). [Reference numerals] (AA) Start; (BB) End; (S110) Set an initial value; (S120) Calculate a TDOA and FDOA estimation value; (S130) Calculate the difference value between a TDOA and FDOA measurement value and the TDOA and FDOA estimation value; (S140) Generate a Jacobian matrix; (S150) Alter the location and speed vector estimation value; (S160) Confirm whether the difference value is higher than a permissible threshold value; (S170) Determine the location and speed

    Abstract translation: 目的:提供信号源位置估计方法和使用它的信号源位置估计装置,以同时使用到达时差(TDOA)和到达频差(FDOA),从而提高位置估计的精度。 构成:信号源位置估计方法包括以下步骤。 设置关于雷达信号源的位置和速度矢量的位置和速度矢量估计值,并设置关于传输值的初始值(S110)。 使用位置和速度矢量估计值和由初始值设定的传输值来计算TDOA和FDOA估计值(S120)。 计算在接收部分中测量的TDOA和FDOA测量值与TDOA和FDOA估计值之间的差值(S130)。 通过使用TDOA和FDOA估计值预先准备的TDOA模型方程和FDOA模型方程进行微分来生成雅可比矩阵(S140)。 使用差值和雅可比矩阵计算用于改变位置和速度矢量估计值的加权值,并且使用加权值来改变位置和速度矢量估计值(S150)。 在差值高于允许阈值的情况下,或者先前步骤中的重复控制程序数量低于最大值时,再次执行前述步骤中的控制步骤(S160)。 如果差值低于允许的阈值,并且控制过程的重复次数高于最大值,则将改变的位置和速度矢量估计值确定为雷达信号源的最终位置速度矢量(S170) 。 (附图标记)(AA)开始; (BB)结束; (S110)设定初始值; (S120)计算TDOA和FDOA估计值; (S130)计算TDOA和FDOA测量值与TDOA和FDOA估计值之间的差值; (S140)生成雅可比矩阵; (S150)改变位置和速度矢量估计值; (S160)确认差值是否高于容许阈值; (S170)确定位置和速度

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