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 ...

Figure 3: (a) Block diagram of the combinedsuper-regenerative receivers for balanced FSK detection. (b) frequency-to-voltage characteristic. PSK Detection When the receiver is tuned to the received ...