pogonofor9z

2022-01-09

Many papers use the NMSE function without ever explicitly defining it. I have always assumed that

and

where y is the approximation to x. This gives a simple relation between NMSE and relative

Is my interpretation not the standard definition?

GaceCoect5v

Beginner2022-01-10Added 26 answers

Matlab System Identification toolbox uses the following definiton:

$NMSE=1-\frac{{\left||x-y|\right|}_{2}}{\left||x-\stackrel{\u2015}{x}|\right|}$

where$\stackrel{\u2015}{x}=\frac{1}{N}\sum _{i}{x}_{i};y$ is the approximation of x

where

22+64

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