中文说明：本代码是了解滤波器组调制的程序。这是phydyas调制方案称为频率扩展描述。该技术是基于扩展的快速傅立叶变换的滤波器组调制的基础；
English Description：
This code is to understand procedure of Filter Bank Modulation. This Modulation scheme is described by PHYDYAS which calls frequency spreading. This technique is base of filter bank modulation with extended Fast Fourier Transform.