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

Wcdma, what is that mean and explain

what is that mean and explain

Determine the peak magnetizing current, A forward converter has the followi...

A forward converter has the following parameters: input source voltage V s = 100 V, N 1 /N 2 = N 1 /N 3 = 1, magnetizing inductance L m = 5 mH, output inductor L o = 200 μH, C

Communication, what do you mean by band in communication? how it differs fr...

what do you mean by band in communication? how it differs from bandwidth?

What are the signals used in input control signal, What are the signals use...

What are the signals used in input control signal & output control signal? Input control signal STB (Strobe input) IBF (Input buffer full) INTR(Interrupt request) Ou

Thyristor terminology , Thyristor  Terminology The followings  terms ...

Thyristor  Terminology The followings  terms are used in SCR  specifications: Latching current : The  latching  current is  the value of on stat e current  required  to mai

Basic requirement of semiconductor laser, What is basic requirement of semi...

What is basic requirement of semiconductor laser? Draw its label diagram and explain its working with necessary theory. Write down the applications of semiconductor laser.

Dee, how do we construct wind turbines. procedures methods

how do we construct wind turbines. procedures methods

Super-heterodyne receiver, Write a short explanation of the principles of s...

Write a short explanation of the principles of super-heterodyne receiver. It may help to use sample block diagram to state the process. Why is the production of the intermediate fr

#title.energy harvesting from door movement., How to convert mechanical ene...

How to convert mechanical energy into electrical energy

What is meant by interrupt, What is meant by interrupt? Interrupt is an...

What is meant by interrupt? Interrupt is an external signal that causes a microprocessor to jump to a particular subroutine.

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