You can add white gaussian noise to a signal, with a desired SNR, using the 'awgn' function.
Refer the following link for more information:
How to add a White Gaussi Noise with amplitude of 0.1 v by matlab for a measurement matrix
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I run power flow analysis in matlab and i got raw measusrments matrix and i would like to add a White e Gaussi Noise with amplitude of 0.1 v by matlab for a measurement matrix
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