# Verb for subtracting the mean?

Is there a verb for removing the mean or DC component of a signal? I am trying to name a flag for doing just that.

"Normalize" can mean many things, so I don't think that would be a good choice.

I've heard this referred to as demeaning a signal, or applying a DC notch (or, in some more hardware-related domains, a DC block). More generally, it might be called just highpass filtering the signal to remove the DC component.

• That's a demeaning way to refer to it! ;-) – Peter K. Apr 4 '13 at 13:05

I've heard the word centering for setting the mean of a signal to 0.

I've heard this called detrending. Although DC removal is a subset of what this means, the Mathworks refers to it in their detrend function:

The MATLAB® function detrend subtracts the mean or a best-fit line