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

Type of genetic inheritance that determines abo blood group, What is the ty...

What is the type of genetic inheritance that determines the ABO blood group system? What are the relations of dominance among the involved alleles? The inheritance of the ABO b

Meaning of counselling in diabetes mellitus, Q. Meaning of Counselling in d...

Q. Meaning of Counselling in diabetes mellitus? The word counselling is a very broad term which is used for helping others to overcome their particular difficulty. It has been

Marchantia , why vegetative reproduction use in marchantia

why vegetative reproduction use in marchantia

What is maturation and adaptation, Maturation and adaptation: (18 to 54 wee...

Maturation and adaptation: (18 to 54 weeks) The final stage involves maturation and adaptation of the implant-bone interface, peri-implant bone and the entire implant supportin

Illustrate the functioning of living systems, How are buffers significant t...

How are buffers significant to the functioning of living systems? By neutralizing small amounts of acid or base that might be added to a solution, buffers keep pH values at nor

Methods of gene transfer in transgenic animals, M e thods of gene transfe...

M e thods of gene transfer The technology employed for introduction of transgenes into a livestock population may produce consequences specific to the method. Once introduced

Some common air pollutants: oxides of sulphur, Oxides of sulphur:     ...

Oxides of sulphur:          It includes SO 2 , SO 3 . It is a colorless gas having sharp, pungent and suffocating odour. It is soluble in water and forms H 2 SO 4 . Sourc

Define itraconazole, Define Itraconazole Itraconazole is FDA-approved f...

Define Itraconazole Itraconazole is FDA-approved for treatment of blastomycosis, histoplasmosis (non-meningeal) and aspergillosis in patients who are intolerant of or refractor

Photosynthesis, The neurotransmitter found in insects that is similar to do...

The neurotransmitter found in insects that is similar to dopamine is?

Urgency, Overcoming these difficulties is urgent. New instrumentation and ...

Overcoming these difficulties is urgent. New instrumentation and measurement process, coupled with a developing computational infrastructure, give both a flood of data and the pro

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