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SNR for Coherent and Non-Coherent Filtering

version (2.83 KB) by Rick McConnell
Plot coherent SNR improvement versus non-Coherent for different amounts of sample averaging


Updated 17 Sep 2009

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A number of rules of thumb exist for the advantages of non-coherent averaging, I wanted to see, in a fairly practical way, what the advantage really was. This turned out to be more complex than I thought, because you have to identify and implement separate parts to the equations for the output noise. This file generates the input SNR, the Output SNR with no filtering, with coherent filtering, and with non-coherent filtering. I have added extensive notes to document my ignorance.

Cite As

Rick McConnell (2021). SNR for Coherent and Non-Coherent Filtering (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (2)

William Ruppenthal

Was helpful when I needed to brush up a little for a project, especially all the comments!

fredy oktaviansyah

This is very useful for my learning.

MATLAB Release Compatibility
Created with R2006a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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