Define sampling below the nyquist rate, Electrical Engineering

Assignment Help:

Define Sampling below the Nyquist Rate?

A further reduction of the sampling frequency will reason one sample to be taken each period. The Case 3 plot depicts the effect of this in both frequency and time domains. In the time domain, the inferred signal does not be like our original signal. In the frequency domain, an alias of our real signal spectrum appears near the frequency of our original. We are now in a situation the same to that of the share prices. It is not probable to reconstruct the original signal from our samples. This effect is known as aliasing in signal processing.

2192_Define Sampling at a Very High Frequency.png

It must be noted that aliasing a signal is not all the time a problem and can, actually be advantageous in some cases where exact reconstruction of the signal is not needed. Since you may have already gathered, the minimum sampling rate should be twice that of the highest frequency component of the signal. This frequency is known as the Nyquist Limit. The theory behind this originated from Nyquist's Sampling Theorem. Shannon's Sampling Theorem as well states the same fact. We cannot again construct the original signal if it was sampled at a rate below the Nyquist limit.


Related Discussions:- Define sampling below the nyquist rate

Dc motor, why we rotate the armature of dc motor in anticlockwise direction...

why we rotate the armature of dc motor in anticlockwise direction

What is terminate and stay resident, What is TSR? TSR: The TPA also as ...

What is TSR? TSR: The TPA also as TSR stand for terminate and stay resident programs which remain in memory in an active state till activated by a hot-key sequence or other eve

What do you mean by continuous signals, Q. What do you mean by Continuous s...

Q. What do you mean by Continuous signals? Continuous signals are described by time functionswhich are defined for all values of t (a continuous variable). Commercial broadcast

For sign flag - conditional jumps , For  Sign  Flag JP ( jump  on ...

For  Sign  Flag JP ( jump  on plus ) Jump  on minus ) Instructions JP  transfer  the execution of the program to the specified  memory  address if  sign  flag is set (S=

Differentiator.., in case of a differentiator will the amplitude rise or fa...

in case of a differentiator will the amplitude rise or falls?

Triggering capabilities of logic analyser, trigger capabilities of logic an...

trigger capabilities of logic analyser that differentiate it from other devices???

Polarisation, describe the working and construction diagram of nicholas pri...

describe the working and construction diagram of nicholas prism

Determine the resistivity of the wire, The resistance of 1.5 km of wire of ...

The resistance of 1.5 km of wire of cross-sectional area 0.17 mm 2 is 150Ω. Determine the resistivity of the wire.

Solar energy, can i use the direct solar energy from solar plate to charge ...

can i use the direct solar energy from solar plate to charge my laptop without a battery

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd