The matrix decomposition method for DOA estimation is analyzed. It is proved that the method is a subspace method.
本文对用于DOA估计的矩阵分解法进行了分析，证明了它是一种子空间方法。
In the case of far field sources, based on the subspace direction-finding technique, a new method for active calibration of array shape is presented.
文中基于子空间类测向方法，在远场情况下，提出了一种新的估计阵元位置误差的有源校正算法。
Based on the idea of frequency domain subspace, a multipath delay estimating method for aperiodic spreading system is proposed.
基于频域子空间思想，给出了一种适用于非周期扩频系统的多径时延估计方法。
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