公开(公告)号：KR102159275B1

公开(公告)日：2020-09-23

申请号：KR1020190031258

申请日：2019-03-19

Applicant: 국방과학연구소

Inventor： 한명훈 ,  노봉수 ,  권대훈 ,  함재현 ,  이동근 ,  윤선희 ,  박형원

IPC: H04W40/24 ,  H04W24/04 ,  H04W84/18

公开(公告)号：KR101426862B1

公开(公告)日：2014-08-07

申请号：KR1020130029007

申请日：2013-03-19

Applicant: 국방과학연구소

Inventor： 김준오 ,  오종찬 ,  윤선희 ,  안재민 ,  최상욱

IPC: H01Q21/28 ,  H01Q21/29 ,  H01Q21/30

Abstract: A three-dimensional array antenna system given in the present invention further includes a Z-axis antenna arranged on the Z-axis vertical to the plane formed by an X-axis antenna (10) and a Y-axis antenna (20) in a X-Y-Z coordinate system. The multiple signal classification (MUSIC) algorithm (40) whereby a steering vector which does not have a symmetric feature on the point of a π/2 altitude due to the cosine function which is a phase shift value by the Z coordinate is applied, and the estimation of the signal parameters via rotational invariance technique (ESPRIT) algorithm which does not calculate an altitude (θ) after calculating an azimuth (φ), instead calculates the azimuth (φ) and the altitude (θ) independently from each other are applied to estimate the altitude (θ) of an air target. Therefore, the difficulty of separating the direction of arrival (DOA) to estimate the altitude from the receiving signal of the array antenna can be resolved, jamming signals can effectively be removed, and the performance deterioration due to error propagation can significantly be reduced.

Abstract translation: 在本发明中给出的三维阵列天线系统还包括一个Z轴天线，该Z轴天线布置在垂直于由X轴天线（10）和Y轴天线（20）形成的平面的Z轴上 XYZ坐标系。 应用多信号分类（MUSIC）算法（40），由此应用由于作为Z坐标的相移值的余弦函数而在π/ 2高度点上不具有对称特征的导向矢量，并且 应用计算方位角（φ）后不计算高度（θ）的旋转不变性技术（ESPRIT）算法对信号参数进行估计，相互独立地计算方位角（θ）和高度（θ） 估计空中目标的高度（θ）。 因此，可以解决从阵列天线的接收信号估计高度的困难，从而可以有效地去除干扰信号，并且可以显着降低由于误差传播引起的性能劣化。