Bissoy.com
Doctors Medicines MCQs Q&A

The process of recovering base band signal from high frequency modulated signal is called

The process of recovering base band signal from high frequency modulated signal is called Correct Answer Demodulation

Correct option:3

Concept:-

Modulation:-  It is the process of attaching a low-frequency base-band signal to the high-frequency carrier wave in order to get high frequency modulated signal for its effective transmission.

[ alt="Modulator" src="//storage.googleapis.com/tb-img/production/21/06/Modulator.png" style="width: 311px; height: 174px;">

There are basically three kinds of modulations:-

1. Amplitude modulation (AM)

2. Frequency modulation (FM) and

3. Pulse modulation (PM)

Explanation:-

Demodulation is the process of recovering baseband signal from high frequency modulated signal.

It can be easily understood with the block diagram as shown below-

[ alt="Demodulation" src="//storage.googleapis.com/tb-img/production/21/06/Demodulation.png" style="width: 427px; height: 178px;">

In the process of Demodulation, we actually separate the carrier wave components from the high-frequency carrier waves.

The signal that we finally get after the demodulation has only a baseband signal.

Hence, option-3 is correct.

Related Questions

Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
Which of the following is/are correct? 1. Detection is the process of recovering the modulating signal from the modulated carrier wave. 2. The carrier frequency is usually changed to a lower frequency by what is called an intermediate frequency (IF) stage preceding the detection.
Which of the following statements are correct? 1. A lowpass filter passes low frequencies and stops high frequencies. 2. A highpass filter passes high frequencies and rejects low frequencies 3. A bandpass filter passes frequencies within a frequency band and attenuates frequencies outside the band. 4. A bandstop filter passes frequencies within the band and blocks/attenuates frequencies outside a frequency band.
Which of the following is the process of recovering modulated signal from the modulated carrier wave?
Frequency modulated signal is regarded as the phase modulated signal in which the modulating wave is differentiated before modulation.
In an AM system receiver. the mixer translates the carrier frequency fc to a fixed intermediate frequency of 450 kHz. Given a broadcast signal of frequency 900 kHz. What is the corresponding image frequency when a superhetrodyne receiver is employed with local oscillator frequency greater than the broadcast signal frequency?
An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are
If F1 and F2 are the lower and upper cutoff frequencies of a band pass signal, then what is the condition to be satisfied to call such a band pass signal as narrow band signal?
Name the process of recovering the original information signal from the modulated wave at the receiver end.
Which one of the following is the process of recovering the modulated signal?