Howtosignalprocessing
- What is demodulation Why is demodulation necessary?
- What are needs of demodulation?
- What is the simplest way to demodulate an AM signal?
- Which device is needed to demodulate the signal?
What is demodulation Why is demodulation necessary?
Demodulation is defined as extracting the original information-carrying signal from a modulated carrier wave. A demodulator is an electronic circuit that is mainly used to recover the information content from the modulated carrier wave.
What are needs of demodulation?
Need for Demodulation
A radio frequency carrier wave carrying within a wireless signal- modulated by audio frequency. With high frequency, The diaphragm of a telephone receiver cannot vibrate. Moreover, this frequency is beyond the audible range of the human ear.
What is the simplest way to demodulate an AM signal?
An AM radio signal can be demodulated by rectifying it to remove one side of the carrier, and then filtering to remove the radio-frequency component, leaving only the modulating audio component. This is equivalent to peak detection with a suitably long time constant.
Which device is needed to demodulate the signal?
Complete answer: A demodulator is a device that performs demodulation, which is the opposite process of modulation. The most basic equipment used for AM demodulation is a diode detector. A diode detector is made up of a diode and a few other parts.
