中文说明：
该程序源代码实现了OFDM通信系统性能的仿真，调制方式有BPSK,QPSK,MSK,QAM,信道为AWGN和Rayleigh信道，并对有插入导频的符合IEEE802.11a的OFDM系统进行了仿真。
English Description：
The program source code realizes the performance simulation of OFDM communication system. The modulation modes include BPSK, QPSK, MSK and QAM. The channels are AWGN and Rayleigh channels. The OFDM system with inserted pilot conforming to IEEE802.11a is simulated