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通过对均匀阵列下二维TLS-ESPRIT算法的研究,将一维ESPRIT改进算法推广到二维领域,在二排平面均匀直线阵模型中使用同一排几何阵列构造两个子阵列,即将阵元为M的阵列够造成由前M-1个阵元构成的子阵列和后M-1个阵元构成的子阵列,从而增加了阵列的有效孔径,提高了信源波达方向的估计精度,并通过MATLAB仿真,给出了不同信噪比情况下,改进算法与原算法的性能比较,证实了该算法的有效性。
Through the research of the two-dimensional TLS-ESPRIT algorithm under the uniform array, the one-dimensional ESPRIT algorithm is extended to the two-dimensional domain. Two subarrays are constructed using the same array of geometric arrays in a two-row planar uniform linear array model, Array is enough to create a sub-array consisting of the first M-1 array elements and the latter M-1 array elements, thereby increasing the effective aperture of the array and improving the estimation accuracy of the source wave direction, and passing MATLAB simulation shows the performance of the improved algorithm compared with the original algorithm under different signal-to-noise ratio, which proves the effectiveness of the algorithm.