On 10/7/11 9:32 PM, Rick Karlquist wrote:
I want to measure the short term stability of a source with substantial linear drift. I would like some measure of stability along the lines of Allan deviation, but I only want to measure the "noise" and ignore the "drift". AFAIK, ADEV treats linear drift like a form of noise. Has this problem been solved before? Any ideas?
what if you (least squares?) fit a straight line to the frequency measurement data, remove that, then look at ADEV? We do something similar with testing deep space transponders which will be handling a signal with varying Doppler so our test signal is varying in frequency.
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