Hi guys,
I told you ! Some questions were to arise... ;-) At work I'm working on 1.5, 3 and 12 GHz pulsed systems with pulses length between 0.1 and 5 us. We are especially interested in phase stability pulse to pulse (repetition rate) and possibly with minor priority on the length of the phase pulses, pulse to pulse. 1. When plotting the phase noise response of a CW signal, one can determine the RMS jitter in ps or fs. I'm wondering what is corresponding to this value. As it's RMS I would expect this is the square root of the maximum of the Gaussian distribution of the frequency jitter. Is it right ? If so this correspond roughly to 1 sigma deviation, right ? 2. Is there any link between this frequency jitter and the phase jitter ? I assume no, but... 3. What does bring the Allan deviation plot ? This gives stability vs integration time I know, but how to make an interpretation of this ? Is it a way to plot the frequency jitter in a more detailed way than just giving the rms jitter ? In practical use, for a pulsed system does it mean that only the very short term jitter is of interest ? 4. Is the Allan deviation plot a representation of the jitter vs integration time, meaning there is a direct relation between the RMS jitter computed at various offsets from the carrier in the PN plot ? 5. Is there a practical way to plot phase noise for pulsed signals ? That's all for now. If anyone has clues or can point me into good articles related this would be kind. Thanks Stephane --- Ce courrier électronique ne contient aucun virus ou logiciel malveillant parce que la protection avast! Antivirus est active. http://www.avast.com _______________________________________________ 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.
