ofdm系统仿真，完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，
%上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模
%块，并统括系统性能的仿真验证了系统设计的可靠性(OFDM system simulation, complete OFDM communication system simulation design, including coding, modulation, IFFT,
% up and down conversion, Gauss channel modeling, FFT, PAPR suppression, all kinds of synchronization, demodulation and decoding.
%, and the overall system performance simulation of the system reliability)