均匀线阵的ESPRIT算法性能仿真分析

Performance simulation analysis of ESPRIT algorithm for uniform linear array

空间谱估计一直是阵列信号处理理论的一个重要分支,旋转不变子空间技术(ESPRIT)是空间谱估计中的典型技术。文章讨论了ESPRIT算法的原理,并通过仿真分析了不同入射角度、阵元数、阵元间距对算法结果的影响,同时也指出了ESPRIT算法在不同信噪比下的估计标准差,为进一步研究提供参考。

Spatial spectrum estimation is always an important branch of array signal processing theory.The rotational invariant subspace technique(ESPRIT)is a typical technique in spatial spectral estimation.In this paper,the principle of ESPRIT algorithm is discussed,and the influence of different incident angle,different array number and different array spacing on the algorithm is analyzed by simulation.At the same time,the standard deviation of ESPRIT algorithm under different signal-to-noise ratio is pointed out,which provides a reference for further research.