ACL_SPPS_L2

In processing the signal we experience aliasing, which

• is the distortion that occurs when a signal is undersampled.
• is the clarity achieved by using high-frequency signals.
• is the process of amplifying a signal before sampling.
• is the enhancement of a signal due to oversampling.

If f is the signal frequency having a noise of g (g>f) to avoid any kind of aliasing sampling frequency should be

What is the Nyquist theorem primarily concerned with?

• The maximum frequency that can be accurately sampled.

• The minimum amplitude required for signal detection.

• The process of filtering out noise from a signal.

• The relationship between frequency and time in signal processing.

Which of the following best describes oversampling?

• Sampling at a rate significantly higher than the Nyquist rate.

• Sampling at the exact Nyquist rate.

• Sampling at a rate lower than the Nyquist rate.

• Sampling only once per cycle of the signal.

What effect does low-pass filtering have on a signal?

• It allows low-frequency signals to pass while attenuating high-frequency signals.

• It amplifies high-frequency signals while reducing low-frequency signals.

• It introduces noise into the signal.

• It has no effect on the signal.