在COFDM传输过程中白噪声的影响。信噪比从0～20db，BER的变化。调制方式：BPSK/QPSK/16PSK-COFDM transmission in the course of white noise impact. Signal-to-noise ratio from 0 ~ 20db, BER changes. Modulation : BPSK/QPSK/16PSK

基于GSM的tdma信号的调制原理和生成的matlab仿真程序-modulation signal generated by theory and simulation program matlab

MF RC500是应用于13.56 MHz非接触式通信中高集成读卡器IC系列中的一员。该读卡IC利用先进的调制和解调概念，完全集成了13.56 MHz下所有类型的被动非接触式通信方式和协议。-MF RC500 13.56 MHz is applied to non-contact communication in highly integrated reader IC family one. The IC card reader use of advanced modulation and de