PSK is another modulation scheme that maps information symbols onto a transmitted carrier signal. With this scheme, ... This modulation is carried out through a combination of multiple QAM modulators ...

Common digital modulation techniques include amplitude-shift keying (ASK), frequency-shift keying (FSK), and phase-shift keying (PSK). ASK is the simplest of these techniques, and is used for low ...

The model name refers to a Fourier Modulation (4M) technique the company said it designed and hopes to patent. It uses duty-cycle modulated RF to produce optimum efficiency over the 250 watt to 55 kW ...