Sampling of Analogue Signals

1 Answer

Sampling of Analogue Signals

image

image

image

•Sampling means splitting in regular interval to convert it in digital form.

•Sampling converts continuous signal to discrete signal.

•Actually the accuracy of analogue signal is more than digital because digital signal have finite data.

•All the positions in discrete signal is a number.

•So analogue signal have some different advantages and digital signal have some different advantages.

•Sampling is used in measurement system and data converters.

•By using different sampling rate we can sampled the signal.

•Sampling frequency or sampling rate Fs = 1/T is the number of samples obtained in one second.

•If the samples are less then it will cause aliasing which will cause loss in information.

•Using Nyquist theorem (Fs ≥2B) where 2B is Nyquist rate we can avoid aliasing and decide how much sampling frequency should use.

•Using sampling we can store the analogue data in digital form.

Like 0 like

Related

Description : What are digital signals used for?

Answer : Operating torques in analogue instruments are deflecting, control and damping.

Description : The sampling rate to avoid aliasing for the signal m(t) = 100 cos 200ωt will be A) ≥1/25 sec B) ≥1/50 sec C) ≤1/25 sec D) ≤ 1/50 sec

Description : Find the phasors corresponding to the following signals

Answer : Find the phasors corresponding to the following signals

Description : For measurement of radio frequency ac signals __________ type meter is used

Answer : For measurement of radio frequency ac signals thermo-couple type meter is used

Ask a Question ← Prev Page Next Page →