replace zeroes with red noise before 2D FFT?

Started by July 7, 2018
I came across a claim in another forum for dealing with 2D FFT where there
are dead traces (data is t-x domain before FFT). So if there is a dead
channel, fill it with red noise whose amplitude matches roughly the other
channels, then do the 2D FFT. 
Supposedly this minimises artefacts.
Plausible?
 
>I came across a claim in another forum for dealing with 2D FFT where there >are dead traces (data is t-x domain before FFT). So if there is a dead >channel, fill it with red noise whose amplitude matches roughly the other >channels, then do the 2D FFT. >Supposedly this minimises artefacts. >Plausible?
What then happens with the FFT result? Is this part of compression / decompressions? Steve