基于信号子空间的超分辨方法一般对接收器阵列误差非常敏感。本文提出的投影变换法利用目标方向的初始估计和阵列流形的先验知识，可以显著减小信号子空间方法的误差灵敏度。文中给出了数值仿真和实际阵列数据测试的结果。 Supersolution methods based on signal subspaces are generally very sensitive to receiver array errors. The projection transformation method proposed in this paper can reduce the error sensitivity of the signal subspace method by using the initial estimation of the target direction and the prior knowledge of the manifold. The paper gives the results of numerical simulation and real array data testing.