火力与指挥控制
火力與指揮控製
화력여지휘공제
FIRE CONTROL & COMMAND CONTROL
2013年
5期
109-111
,共3页
二维DOA估计%中心对称平面阵%二维Unitary-ESPRIT算法%DOA估计精度
二維DOA估計%中心對稱平麵陣%二維Unitary-ESPRIT算法%DOA估計精度
이유DOA고계%중심대칭평면진%이유Unitary-ESPRIT산법%DOA고계정도
2-D estimation of DOA%planar array with symmetrically distributed sensors%2-D Unitary ESPRIT algorithm%precision of DOA estimation
提出了一种采用酉ESPRIT(Unitary-Estimation of Signal Parameters via Rotational Invariant Technique,U-nitary-ESPRIT)算法对目标的二维波达方向(Direction-of-Arrival,DOA)进行估计,接收信号模型为中心对称的平面阵.与二维MUSIC(Multiple Signal Classification)算法、二维求根MUSIC算法、二维ESPRIT算法不同的是,该算法将复矩阵运算转化为实矩阵计算,简化了运算复杂程度,并且目标的DOA估计精度也相应的得到提高,是一种比较高效的DOA估计算法.
提齣瞭一種採用酉ESPRIT(Unitary-Estimation of Signal Parameters via Rotational Invariant Technique,U-nitary-ESPRIT)算法對目標的二維波達方嚮(Direction-of-Arrival,DOA)進行估計,接收信號模型為中心對稱的平麵陣.與二維MUSIC(Multiple Signal Classification)算法、二維求根MUSIC算法、二維ESPRIT算法不同的是,該算法將複矩陣運算轉化為實矩陣計算,簡化瞭運算複雜程度,併且目標的DOA估計精度也相應的得到提高,是一種比較高效的DOA估計算法.
제출료일충채용유ESPRIT(Unitary-Estimation of Signal Parameters via Rotational Invariant Technique,U-nitary-ESPRIT)산법대목표적이유파체방향(Direction-of-Arrival,DOA)진행고계,접수신호모형위중심대칭적평면진.여이유MUSIC(Multiple Signal Classification)산법、이유구근MUSIC산법、이유ESPRIT산법불동적시,해산법장복구진운산전화위실구진계산,간화료운산복잡정도,병차목표적DOA고계정도야상응적득도제고,시일충비교고효적DOA고계산법.
An Unitary ESPRIT algorithm for the estimation of Direction-of-arrival angles is proposed,and the receiving array is a planar array with symmetrically distributed sensors. Different from the 2-D MUSIC algorithm,2-D Root MUSIC algorithm and 2-D ESPRIT algorithm,the 2-D Unitary ESPRIT algorithm converts the complex matrix into a real one,which makes the calculation easily and reduces the time for the estimation of DOAs. At the same time,it enhances the accuracy of the estimation of DOAs. In briefly,the 2-D Unitary ESPRIT algorithm is an effective method for the estimation of DOAs.
