中文说明：
这是一个柱面阵的三维波束图，对波束图和阵列信号的理解有很大帮助，这是通用的程序，可改成任意阵型的波束图，搞雷达或者水声的同学不要错过。
English Description：
This is a three-dimensional beam pattern of a cylindrical array, which is very helpful for the understanding of beam pattern and array signal. This is a general program and can be changed into beam pattern of any array. Students engaged in radar or underwater acoustic should not miss it.