说明：  rake接收机，三种主要分集合并方式性能比较： 最大比合并 , 等增益合并 , 选择式合并 。代码有较详细的解释，学生练习，第一次发帖。
(rake receiver, and a collection of three main sub-way performance comparison: ' Maximum Ratio Combining' , ' equal gain combining' , ' Selective merger' . A more detailed explanation of the code, students practice first post.)