说明：  基于32阵元的均匀线阵波束形成，适合初学者的学习理解，更改阵元数，主瓣会随着阵元数的增加而变窄，来提高分辨率。
(Based on 32 elements of the uniform linear array beamforming, suitable for beginners to learn to understand, change the number of elements, the main lobe with the increase of the number of elements to narrow, to improve the resolution. )