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

Fereday law.., what does actually feredy law wants to proof.

what does actually feredy law wants to proof.

State lenz''s law, Lenz's law states: 'The direction of an induced e.m....

Lenz's law states: 'The direction of an induced e.m.f. is always like that it tends to set up a current opposing the motion or the change of flux responsible for inducing that

Mathematics, The two sides of a triangle are 17 cm and 28 cm long, and the ...

The two sides of a triangle are 17 cm and 28 cm long, and the length of the median drawn to the third side is equal to 19.5 cm. Find the distance from an endpoint of this median to

Find the mmf needed to establish a magnetic flux, Q. Consider the toroid sh...

Q. Consider the toroid shown in figure made up of three ferromagnetic materials. Material a is nickel-iron alloy having a mean arc length la of 0.6 m; material b is medium silicon

Semiconductor diode, Semiconductor Diode: the semi conductor diode is ...

Semiconductor Diode: the semi conductor diode is formed by simply bringing n and p tripe material together (constructed from same base ge and si), at the instant the two mater

What are the performance measures of oscillator circuits, Q. What are the p...

Q. What are the performance measures of oscillator circuits? 1. Stability: This is determined by the passive components. R, C and L determine frequency of oscillations. If R ch

Lead acid battery, Describe the construction of lead acid battery

Describe the construction of lead acid battery

Why are waveguides not used at low frequencies, Q. Comment brie?y on the fo...

Q. Comment brie?y on the following: (a) Why are waveguides not used at low frequencies? (b) Why are open-wire lines not generally used as guiding structures at very high freq

Spectral analysis and signal bandwidth, Q. Show Spectral Analysis and Signa...

Q. Show Spectral Analysis and Signal Bandwidth? Spectral analysis is based on the fact that a sinusoidal waveform is completely characterized by three quantities: amplitude, ph

Phisics, deriving formula of the frictional force

deriving formula of the frictional force

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