Discrete fourier transform ( DFT) was introduced into the spatial domain signal processing to analyse and process the uniformly spaced linear array signals, and a method to extract the DOA of signal was presented.

• 将离散傅里叶变换(DFT)引入到空域信号处理中；对等距线阵接收的信号进行了分析和处理；提出了一种提取信号来波方向的方法.