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

Rim read interrupt mask instruction, RIM Read Interrupt Mask Instruction ...

RIM Read Interrupt Mask Instruction This  instruction is used  to read the  status  of interrupts  and  read the serial  input  data. The status  byte is loaded  into  the accu

Semiconductors, Why do potential barriers breaks when a breakdown voltage i...

Why do potential barriers breaks when a breakdown voltage is application to semiconductor

When input is a triangular wave, Q. When input is a triangular wave. W...

Q. When input is a triangular wave. When the input fed to differentiating circuit is a triangular wave, the output will be a rectangular wave. During the period OA of

Determine the power delivered to the delta-connected load, Q. A balanced de...

Q. A balanced delta-connected load with a per-phase impedance of 30+j10  is connected in parallel with a balanced wye-connected load with a per phase impedance of 40-j10 . This l

What are concentrators, Q. What are concentrators? Elucidate how it helps i...

Q. What are concentrators? Elucidate how it helps in connecting number of subscribers. Ans: In rural areas, subscribers are usually dispersed. It is both expensive and unn

D.c. generator, D.C. Generator A magnetic field is produced by af...

D.C. Generator A magnetic field is produced by afield coil supplied with a D.C. current and a rotor is placed between shaped pole pieces and wound with an armature wind

Control system, I need some help for doing the assignment

I need some help for doing the assignment

Unconditional return, Unconditional Return RET Instruction: This  instr...

Unconditional Return RET Instruction: This  instruction is used to transfer the program sequence  from subroutine to the calling  program unconditionally. The instruction forma

Explain block diagram of the system, Q. Explain Block diagram of the system...

Q. Explain Block diagram of the system? The block diagram is a pictorial representation of the equations of the system. Each block represents a mathematical operation, and the

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