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传统的自适应波束形成算法大都选择均匀线阵进行研究,而均匀圆环阵相比与线阵有着许多特殊的优点,在众多自适应算法中,Gram-Schmidt正交投影法是一种重要的开环算法,由于其收敛速度快,算法简单易行,运算量小,因而取得广泛的应用。本文在将传统G-S算法应用于均匀圆环阵仿真的基础上,提出了一种改进的算法,并对其应用于圆环阵的性能进行比较分析,结果表明改进的算法提高了算法的稳定性,加深了其方向图在干扰处的零陷深度。
Most of the traditional adaptive beamforming algorithms choose uniform linear arrays. However, the uniform circular array has many special advantages compared with linear arrays. Among the many adaptive algorithms, Gram-Schmidt orthogonal projection is an important Open-loop algorithm, due to its convergence speed, the algorithm is simple and easy, the amount of computation is small, and thus made a wide range of applications. Based on the traditional GS algorithm applied to the uniform circular array simulation, an improved algorithm is proposed and the performance of the circular array is compared and analyzed. The results show that the improved algorithm improves the stability of the algorithm , Deepening the zero-depth of its pattern at the disturbance.