采用 BPSK 解调解调、IFFT 调制、信道估计等通信模块，包含这些模块的 m 文件。系统采用加性 AWGN 噪声信道。(Using BPSK demodulation and demodulation, IFFT modulation, channel estimation and other communication modules, including the m files of these modules. The system uses an additive AWGN nois