Given that a sinusoidal carrier is given by c(t)=Acsin(?c+?), in phase modulation the quantity depends on baseband signal is ?
129) Given that a sinusoidal carrier is given by c(t)=Acsin(?c+?), in phase modulation the quantity depends on baseband signal is
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Related Electronic Devices and Communication MCQ with Answers
pulse height or the peak voltage
Pulse is specified by pulse height or the peak voltage, the pulse duration and pulse to pulse spacing. In pulse amplitude modulation (PAM) what changes with base band signal is pulse height or the peak voltage
3 discrete values
A special case of amplitude modulation is where the baseband signal is a pure sine wave. If??c?is the carrier frequency and??<m the base band signal, the spectrum of the modulated signal contains 3 discrete values
?c,??c?+??m?,??c?-?m
A special case of amplitude modulation is where the baseband signal is a pure sine wave. If??c?is the carrier frequency and??m the base band signal, the spectrum of the modulated signal contains the values ?c,??c?+??m?,??c?-?m
AM/AC
If AC and AM are the amplitudes of the carrier and baseband signals then modulation index in amplitude modulation is AM/AC