说明：  基于MUSIC算法的测向性能分析，包含阵元数、阵元间距、入射角度、快拍数、信噪比改变时的测向性能分析，适合入门者
(Finding based on MUSIC algorithm performance analysis, including the number of array elements, element spacing, angle of incidence, the number of snapshots, SNR change of direction finding performance analysis, suitable for beginners)