E7F09 : Why is an anti-aliasing filter required in a decimator?
A
It removes high-frequency signal components that would otherwise be reproduced as lower frequency components
B
It peaks the response of the decimator, improving bandwidth
C
It removes low-frequency signal components to eliminate the need for DC restoration
D
It notches out the sampling frequency to avoid sampling errors
Correct Answer: It removes high-frequency signal components that would otherwise be reproduced as lower frequency components