说明：  Matlab的OFDM仿真，信道估计，有BER曲线 该程序进行了简单的LMS信道估计，没有加入与MMSE等其他信道估计算法的比较；
(Matlab simulation of OFDM, channel estimation, BER curves the program was simple LMS channel estimation, not joined with the MMSE channel estimation algorithm and other comparative )