[time-nuts] Flicker Noise Reduction

[Richard (Rick) Karlquist]

On 11/18/2020 5:27 PM, jimlux wrote:

> The proposed mitigation technique relies on tracking the
> rapid gain variations in the radiometer due to 1/f noise and
> correcting them by generating a baseline state in the first
> amplification stage of the low noise amplifier (LNA). The
> proposed 1/f noise mitigation method can be applied to any
> receiver, but it is especially valuable for THz receivers since

I'm confused here.  My understanding of 1/f noise was
that it was additive as in "AWGN".  Can you clarify this?
You also imply it works for ANY receiver.  Now I'm REALLY
confused.  Unless the "direct conversion receiver" is actually
an envelope detector.  Then I think I see how it can work
at any frequency.

Not arguing, just trying to understand :-)

Thanks.

Rick N6RK