In this paper, the independent vector basis can be got by using the nonlinear minimizing mean square criterion.It can estimate the DOA of ULA by using the character of the independent vector basis.

• 该文利用通过非线性最小均方准则获得的独立矢量基,并且根据其所具有的特性,将其应用于均匀线阵的信号波达方向估计。