Pulse counting works by generating a narrow, fixed-width square wave pulse at a set point in the received FM signal’s waveform, usually at the zero-crossing point. Since the frequency of the ...

For this purpose, a 2-kHz sinusoidal signal is amplitude modulated (AM) with a 961-kHz sinusoidal waveform by a Rigol DG1022Z signal generator (Rigol Technologies, Inc., 2016) and is used as the ...