.FSK、PSK、ASK调制原理 在数字通信系统中，数字基带信号通常要经过数字调制后再传输。常见的调制方式有频移键控（FSK）、相移键控（PSK）、幅移键控（ASK）-. FSK, PSK, ASK modulation principle in digital communication systems, digital baseband signal is usually subject to digital modulation and then transmitted. Common m

数字信号调制中的幅度调制、频率调制、相位调制等例程。-Digital signal modulation of the amplitude modulation, frequency modulation, phase modulation, such as routines.