This paper presents at first the definitions of the space expanded by an array, the signal subspace and the noise subspace.
首先对基阵所张成的空间、信号子空间和噪声子空间给出了定义。
The orthogonality between the signal subspace and the noise subspace is widely employed to implement the Direction of Arrival (DOA) estimation.
利用信号子空间和噪声子空间正交性，可以实现超分辨波达方向(DOA)估计。
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