一种快速的二维高分辨波达方向估计方法混合波达方向矩阵法
A FAST METHOD OF TWO-DOMENSIONAL HIGH-RESOLUTION DOA ESTIMATION-MIXED DOA MATRIX METHOD
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摘要: 本文利用两个具有位移特性的二维传感器子阵列信息构成一种新的矩阵混合波达方向矩阵。混合波达方向矩阵的特征值和特征矢量分别为信号源方位角与高低角的混合方向元素和方位角与高低角的混合方向矢量。合理选择子阵列构造可以解决兼并信号源分辨问题和降低阵列孔径损失。Abstract: A new type matrix-mixed DOA matrix is formed with the information of two identical translation subarrays. When there exsit displacements along X and Y axes, the nonzero eigenvalues and eigenvectors are mixed direction elements and vectors. Generally, the method can solve the sources come from the same DOA with auto-pairing and has lesser loss of the array aperture.
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