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

Biotechnology, Biotechnology: Biotechnology is, perhaps. best define...

Biotechnology: Biotechnology is, perhaps. best defined as the  industrial utilisation  of biological  systems or processes.  In sense, therefore, biote(biology ha existed fo

Secondary prevention - community mental health programme, Secondary Preven...

Secondary Prevention: The various aspects of  secondary prevention are:  1)  Early Diagnosis  and  Case Finding  This can be achieved by  educating the public and commun

What is the typical shape of poriferans, What is the typical shape of porif...

What is the typical shape of poriferans? Sponges have bodies in the type of tubular vases or globes open in the upper extremity. They have an internal central cavity and porous

Subphylum mastigophora, Subphylum Mastigophora One or more flagella p...

Subphylum Mastigophora One or more flagella present in adult stages; autotrophic or heterotrophic nutrition; reproduction usually asexual by fission. Class - Phytomasti

Describe the male reproductive system, Describe the Male Reproductive Syste...

Describe the Male Reproductive System? In addition to the primary sex organs, the testes, there are accessory structures that store, nourish, and activate the sperm, and conduc

Hirudinea - feeding and digestion in annelids, Hirudinea - Feeding and Dige...

Hirudinea - Feeding and Digestion in Annelids Hirudinea involves free living and ectoparasitic leeches. Leeches are blood suckers. The digestive system contains a preoral cham

What are secondary roots, What are secondary roots? In origin how secondary...

What are secondary roots? In origin how secondary roots differentiate from shoots? Secondary roots are ramifications of the primary (major) root. The secondary roots emerge fro

What are diseases of the connective tissue, Q. What are diseases of the con...

Q. What are diseases of the connective tissue? What are some of them? Diseases of the connective tissue are acquired or hereditary diseases numerous of autoimmune cause charact

Zoochory - dispersal of seeds, Zoochory - Dispersal of Seeds Some frui...

Zoochory - Dispersal of Seeds Some fruits are eaten by animals and the seeds are passed out with the excreta (endozoochory). Plums, Lantana, grapes, figs and guava are example

Developmental biology, a recent topic for my developmental biology assignm...

a recent topic for my developmental biology assignment

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