There is some nonlinearity but it seems consistent from cycle to cycle. I might be able to reduce the bumps with better circuit layout, shorter wires, terminated lines etc. But just for playing around with my initial data, I think I can model the shape of the response and get a more accurate reading of instantaneous phase angle vs time. I could write some code for this, but I suspect this wheel has been invented before... is there any reference I should consult? I think something similar is done inside the PIC-TIC to calibrate its response?
John,
Very nice plot. Thanks for sharing that. The next step is simply to differentiate and then re-plot the data (you know that's just one line of code: x[i+1] - x[i]). You should see two lines, +slope and -slope. Then take the absolute value. You should now see one line and the auto-scaled plot will show in much greater detail the variations of Rb performance and/or XOR non-linearity. Make these two plots and then I'll walk you through the next step. /tvb _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
