本文提出了一种基于最小冗余线阵的共轭循环ESPRIT算法。理论分析和计算机仿真实验均表明:该算法具有良好的DOA估计性能,增大了阵列孔径,抗噪能力强,分辨率高,可以用较少的阵元估计更多的信号源方向。计算机仿真实验验证了算法的有效性,并比较了该算法与共轭循环ESPRIT算法的DOA估计性能。 This paper presents a conjugate cyclic ESPRIT algorithm based on the least redundant linear array. Both theoretical analysis and computer simulation show that the proposed algorithm has good DOA estimation performance, increases the aperture of the array, has strong anti-noise ability and high resolution, and can estimate more direction of the signal source with fewer array elements. Computer simulation experiments verify the effectiveness of the algorithm, and compare the DOA estimation performance between the proposed algorithm and the conjugate cyclic ESPRIT algorithm.