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

Fermi level, Fermi Level Electrons in solids obey Fermi-Dirac (F...

Fermi Level Electrons in solids obey Fermi-Dirac (FD) statistics. This statistics accounts for the indistinguishability of the electrons, their wave nature, and the

How many interrupts does 8085 have, How many interrupts does 8085 have, men...

How many interrupts does 8085 have, mention them The 8085 has 5 interrupt signals; they are INTR, RST7.5, RST6.5, RST5.5 and TRAP

Write the volt-ampere relations for the coupled inductors, Q. For the coupl...

Q. For the coupled inductors shown in Figure, neglecting the coil resistances, write the volt-ampere relations.

Show typical electric power distribution system, Q. Show Typical electric p...

Q. Show Typical electric power distribution system? In central business districts of large urban areas, the primary distribution circuits consist of underground cables which ar

Use mesh analysis and nodal analysis to determine current, Q. Use (a) mesh ...

Q. Use (a) mesh analysis and (b) nodal analysis to determine the current through the 4-resistor of the circuit of Figure.

What is transconductance, Q. What is transconductance? Explain its signific...

Q. What is transconductance? Explain its significance from the transfer characteristics. Transconductance is the transistor gain of the JFET; it indicates the amount of control

Explain thermosetting plastic materials, Explain Thermosetting Plastic Ma...

Explain Thermosetting Plastic Materials. Thermosetting Plastic Materials: They undergo huge changes while subjected to high temperatures for rather sometimes. They are call

Igbt - insulated gate bipolar transistor , IGBT ( Insulated Gate Bipolar T...

IGBT ( Insulated Gate Bipolar Transistor ) IGBT  stands for  insulated gate bipolar transistor. It is having the advantages of both power MOSFET and BJT.  In IGBT  layer is P

CAO, conditional branch instruction

conditional branch instruction

Calculate area of heating surface, Question: An evaporator is a device ...

Question: An evaporator is a device in which a feed stream is concentrated by boiling a solution. A combination of heating and reduced pressure are used to induce the boiling.

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