Howtosignalprocessing
- What is meant by carrier recovery?
- What is carrier recovery in digital modulation?
- How do you recover a modulated signal?
- What is symbol timing recovery?
What is meant by carrier recovery?
A carrier recovery system is a circuit used to estimate and compensate for frequency and phase differences between a received signal's carrier wave and the receiver's local oscillator for the purpose of coherent demodulation.
What is carrier recovery in digital modulation?
Carrier recovery refers to establishing a local carrier reference signal which accurately reproduces the frequency and, with some modulation methods, the phase of the carrier of the modulated signal.
How do you recover a modulated signal?
The demodulation process recovers the original information (modulating signal) from the carrier signal. The process of demodulation is also called detection or discrimination, and the device constructed for demodulation can be called a demodulator, detector, or discriminator.
What is symbol timing recovery?
The purpose of timing recovery is to recover a clock at the symbol rate or a multiple of the symbol rate from the modulated waveform. This clock is required to convert the continuous- time received signal into a discrete-time sequence of data symbols.
