ofdm论文\cp0201_2PPM_TH.m ........\cp0201_bits.m ........\cp0201_repcode.m ........\cp0201_TH.m ........\cp0201_transmitter_2PPM_TH.asv ........\cp0201_transmitter_2PPM_TH.m ........\cp0201_waveform.m ........\OFDM系统原理及仿真实现.doc ofdm论文