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What is Demodulation?(a) Process of varying one or more properties of a periodic waveform(b) Recovering information from a modulated signal(c) Process of mixing a signal with a sinusoid to produce a new signal(d) Involvement of noiseI had been asked this question during an interview for a job.The origin of the question is Source of Information in portion Elements of Communication System of Analog Communications

Answer»

The correct choice is (b) Recovering INFORMATION from a modulated signal

Easy explanation: Demodulation is the PROCESS of recovering information from a modulated carrier WAVE while it is modulation in which properties of a periodic waveform is VARIED. A modulator is a device that performs modulation while the demodulator performs demodulation. A modem can perform both FUNCTIONS.



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