中文说明：有两个matlab的代码，其中包括水声学原理课的海洋声线图画法以及声纳技术课的简单的波束形成，希望会对大家有一点点帮助
English Description：
There are two Matlab code, including Underwater Acoustics Theory course Sea Ray drawing simple Beamforming method and sonar technology, I hope will be a little bit of help