Virtual Labs

A single tone 4 kHz message signal is sampled with 9 kHz, 7 kHz and 5 kHz. Aliasing effect will be seen in the reconstructed signal, when the signal is sampled with

a: 9 kHz Explanation

Explanation

b: any of 9 kHz, 7 kHz, or 5 kHz Explanation

Explanation

c: Both 9 kHz and 7 kHz Explanation

Explanation

d: Both 7 kHz and 5 kHz Explanation

Explanation

A single tone 4 kHz message signal is sampled with 10 kHz and 6 kHz. Aliasing effect will be seen in the reconstructed signal when the signal is sampled with

a: 10 kHz Explanation

Explanation

b: 6 kHz Explanation

Explanation

c: Both 10 kHz and 6 kHz Explanation

Explanation

d: Neither 10 kHz nor 6 kHz Explanation

Explanation

Find the Nyquist rate and Nyquist interval of sin(2πt).

a: 2 Hz, 1/2 sec Explanation

Explanation

b: 1/2 Hz, 1/2 sec Explanation

Explanation

c: 1/2 Hz, 2 sec Explanation

Explanation

d: 2 Hz, 2 sec Explanation

Explanation

The effect caused by under sampling is called

a: smoothing Explanation

Explanation

b: sharpening Explanation

Explanation

c: summation Explanation

Explanation

d: aliasing Explanation

Explanation

Which of the following is true with respect to undersampling?

a: High power Explanation

Explanation

b: Greater than Nyquist frequency Explanation

Explanation

c: Use low pass filters Explanation

Explanation

d: Less memory size Explanation

Explanation

Community Links Sakshat Portal Outreach Portal FAQ: Virtual Labs

AGPL 3.0 & Creative Commons (CC BY-NC-SA 4.0)