Carrier

Carrier and timing not properly locking?

Carrier and timing not properly locking?
  1. What is coherent carrier recovery?
  2. What is carrier recovery in digital modulation?

What is coherent carrier recovery?

Carrier phase recovery (CPR) is an indispensible function in such coherent receivers, in which the random phase shifts induced by laser phase noise at both transmitter and receiver sides need to be compensated.

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.

Group Group delay and number of zeros for a symmetric FIR system
Group delay and number of zeros for a symmetric FIR system
What is group delay in FIR filter?What is the condition for symmetric in FIR filter with constant phase and group delays?Do FIR filters have zeros?Ho...
Average Why are moving average filters and integrators considered low pass filters?
Why are moving average filters and integrators considered low pass filters?
Why is a moving average filter a low-pass filter?Is a moving average the same as a low-pass filter?Is low-pass filter an average?What are moving aver...
Noise Why power = variance = rms^2 in the White Noise process?
Why power = variance = rms^2 in the White Noise process?
Why is noise power equal to variance?What is variance of white noise?Why is noise measured in RMS?What is the variance of white Gaussian noise? Why ...