在不求出DOA的情况下，采用离散傅里叶变换来估计该路径下行信道协方差矩阵。

DFT is used to estimate the covariance matrix of downlink channel of the path, not calculating DOA.

youdao

在不求出DOA的情况下，采用离散傅里叶变换来估计该路径下行信道协方差矩阵。

DFT is used to estimate the covariance matrix of downlink channel of the path, not calculating DOA.

youdao