What is the relationship between SNR and bandwidth? - ProProfs Discuss
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What is the relationship between SNR and bandwidth?



A. SNR = change in NEX or new NEX/old NEX
B. SNR = sq rt of change in bandwidth or new RBW/old RBW
C. SNR = 1/sq rt of change in BW or 1 / (new RBW/old RBW)
D. SNR = 1 / sq rt of change in BW or 1 / (old/RBW/new RBW)

This question is part of MRI Anatomy and Imaging
Asked by Athelco, Last updated: Jan 16, 2020

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2 Answers

J. Shatner

J. Shatner, Content writer, Boston

Answered Sep 20, 2018

The answer to this is C. SNR is also known as Signal to Noise Ratio. If you would alter the SNR, you can already expect that this will also change the bandwidth. This means that they are related to each other. Take note that the presence of noise will make it harder for the other signals to be detected.

SNR is important because the main goal of people is to see how clear the signal is. It would be easy for people to know if a certain amount of noise will be enough to disrupt signal or not. There are times when the a certain amount of noise will be tested just to see if signal is still clear enough.

 

John Smith

John Smith

Answered Dec 09, 2016

SNR = 1/sq rt of change in BW or 1 / (new RBW / old RBW)
 

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