How to design the modulation and demodulation of ASK, FSK and PSK with matlab, including time domain and frequency domain waveforms.

Modulation and demodulation have the special function of obtaining baseband signals.

Example: pskmod fskmod pskdemod fskdemod

Just multiply the time domain waveform by the complex carrier.

Frequency domain waveform is to do fft, or observe its power spectrum with other functions.