这是一个相对完整的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。 -This is a relatively complete simulation of OFDM communication system design, including coding, modulation, IFFT, the upper and lower frequency, Gaussi

ofdm 传输与接受的各项例子 -OFDM Receiver 1. Initalize the USRP setting the RX parameters and moving the LO outside the transmission band. 2. Generate random data bits (PN Sequence) (125 bits) 3. Use the Van De Beek algorithm to detect the cyclic prefix