Magnus Danielson wrote: > In the article that was recently referred to, it was not a measurement rig for > oscillators but for transfer components, such as gain-stages, phase shifters > etc. and the approach is different then, since you do have the signal prior to > being dirtyfied. Thus, the interferometer approach makes sense. The refinement > was certainly interesting. > > Cheers, > Magnus > Hej Magnus
What about a 3 source version of the following with the oscillator under test common to both channels together with using the cross spectrum to isolate the noise due to the oscillator under test. (of course phase locking the 2 other oscillators to the reference using a very low bandwidth loop may also be required). http://www.femto-st.fr/~rubiola/journal-articles/rubiola2003ell-low-signal-power-interferometer.pdf <http://www.femto-st.fr/%7Erubiola/journal-articles/rubiola2003ell-low-signal-power-interferometer.pdf> Bruce _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
