公开(公告)号：KR101274554B1

公开(公告)日：2013-06-13

申请号：KR1020120021544

申请日：2012-03-02

Applicant: 국방과학연구소

Inventor： 박철순 ,  나선필 ,  오왕록 ,  김성민

IPC: H01Q21/08 ,  G01R29/08

Abstract: PURPOSE: An arrival angle estimation method, and an array antenna using the same are provided to apply an element removal technique of a covariance inverse matrix to a capon algorithm, thereby improving the performance of arrival angle estimation. CONSTITUTION: An arrival angle estimation method is as follows. Signals are received by array antennas(S100). A covariance inverse matrix of a covariance matrix is calculated(S220). A capon algorithm is applied with an element removal technique of a covariance inverse matrix(S230). A power spectrum of signal sources corresponding to the received signals is calculated(S240). An arrival angle is estimated by comparing the calculated power spectrum with a predetermined threshold(S300). [Reference numerals] (S100) Step of receiving a signal; (S210) Step of estimating covariance matrix; (S220) Step of calculating covariance reverse matrix; (S230) Step of applying covariance reverse matrix element removal technique; (S240) Step of calculating a power spectrum; (S300) Step of estimating an arrival angle

Abstract translation: 目的：提供到达角度估计方法和使用其的阵列天线，以将协方差逆矩阵的元素去除技术应用于Capon算法，从而提高到达角度估计的性能。 构成：到达角度估计方法如下。 信号由阵列天线接收（S100）。 计算协方差矩阵的协方差逆矩阵（S220）。 使用协方差逆矩阵的元素去除技术来应用Capon算法（S230）。 计算与接收信号对应的信号源的功率谱（S240）。 通过将计算的功率谱与预定阈值进行比较来估计到达角（S300）。 （附图标记）（S100）接收信号的步骤; （S210）估计协方差矩阵的步骤; （S220）计算协方差逆矩阵的步骤; （S230）应用协方差逆矩阵元素去除技术的步骤; （S240）计算功率谱的步骤; （S300）估计到达角度的步骤