中文说明：
很完善的一个OFDM仿真程序,它以FUNCTION的形式,再现了OFDM映射,IDFTDFT,同步(时间频率同步)和信道估计,以及频率偏移的估计等一系列代码。
English Description：
A perfect OFDM simulation program, which reproduces a series of codes such as OFDM mapping, IDFTDFT, synchronization (time-frequency synchronization) and channel estimation, as well as frequency offset estimation in the form of function