Nyquist limit, Biology

Assignment Help:

The NYQUIST LIIMIT-It is a sampling phenomenon, which limits the maximum fiequemcy shift measurement to one half of the sampling frequency (PRF).

By its nature, pulse wave Doppler is a sampling system while continuous wave Doppler is not. The nyquist limit is a theoretical maximum frequency that a

If the frequency shift is higher than the Nyquist frequency, aliasing occurs; i.e., the Doppler spectrum is cut off the Nyquist frequency and the remaining frequency shift is recorded on the opposite side of baseline.

The PRF varies inversely with the depth of the sample volume the shallower the location of the sample volume, the higher the PRF and Nyquist frequency. In other words, higher velocities can be recorded without aliasing by pulse wave Doppler if the sample volume is closer to transducer.

438_NYQUIST LIMIT.png


Related Discussions:- Nyquist limit

Determine about the term - heterogeneous mixture, Determine about the term ...

Determine about the term - heterogeneous mixture The solid phase made up of soil and other source material for nutrients, is a heterogeneous mixture. Each nutrient source contr

Juxtaglomerular apparatus, Normal 0 false false false E...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Respiration in fishes, RESPIR A TIO N IN FISHES - Respiratory org...

RESPIR A TIO N IN FISHES - Respiratory organs are gills. In elasmobranchi 5-7 pairs of gills present, spiracles present. In Teleostomai 4 pairs gills present, covered

Theory of evolution, Evolution: This deals with the origin of newer types o...

Evolution: This deals with the origin of newer types of organism from the previous ones by modification involving genetic changes and adaptations. Evolution also called as biologic

Gastrulation in chick, Gastrulation in Chick Cleavage in the fertilize...

Gastrulation in Chick Cleavage in the fertilized egg occurs during its passage through the oviduct to cloaca of the hen. By the time it is laid meroblastic cleavage has result

How many cells are in the average human brain, How many cells are in the av...

How many cells are in the average human brain? Roughly, 6 trillion are in the average human brain.

Explain vitamin k as an essential fat soluble micronutrient, Explain Vitami...

Explain Vitamin K as an essential fat soluble micronutrient? Vitamin K is an essential fat-soluble micronutrient the only unequivocal role in health is in the maintenance of no

3x samples collected in process validation, To get the idea on the process ...

To get the idea on the process capability that whether the intended process provides the consistent results or not(precision).

Is water a polar molecule or non-polar, Q. Is water a non-polar or a polar ...

Q. Is water a non-polar or a polar molecule? What is the consequence of that characteristic for the function of water as solvent? Water is made of two atoms of hydrogen attache

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