中文说明：待发送的比特数据bit_source在接收机经过卷积、打孔、取整、交织、调制、IFFT、加cp等子程序得到发射机发出的信号，然后经过信道，信道由bigfade、multipath_chann、add_noise等程序实现，到达接收机后依次经过去c
English Description：
Bit data to be sent_ Source in the receiver through convolution, drilling, rounding, interleaving, modulation, IFFT, CP and other subroutines to get the signal from the transmitter, and then through the channel, the channel by bigfade, multipath_ chann、add_ Noise and other procedures to achieve, after arriving at the receiver, followed by C