How is the high frequency component removed for the output of a QPSK phase detector with a value of 0.5A cos (0 + (phi)d) - (0.5A cos 2(omega)ct)?
A) band-stop filter
B) high-pass filter
C) low-pass filter
D) notch filter

Question

Quizplus · Accepted Answer

The high frequency component is removed using a low-pass filter, which allows lower frequency signals, such as the desired output, to pass while filtering out higher frequency noise or undesired signals.

How Is the High Frequency Component Removed for the Output