Hi Ulrich, Thanks for the useful link.
Regards, Stephan. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ulrich Bangert Sent: 01 July 2006 05:39 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Linear Interpolator Hi Stephan, a lot of excellent scientifical reading is availabale on the net about that topic. My personal #1 reference is "A Jitter Characterization Sytem Using a Component-Invariant Vernier Delay Line" by Antonio H. Chan. There are other companies to sell ready to go ps resolution stuff but not at the prices of ACAM. Regards Ulrich > -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Im Auftrag von Stephan Sandenbergh > Gesendet: Freitag, 30. Juni 2006 14:02 > An: 'Discussion of precise time and frequency measurement' > Betreff: Re: [time-nuts] Linear Interpolator > > > Hi Ulrich, > > Thanks for the tip. And, also many thanks to Magnus for > introducing me to the concept of Time-to-Digital conversion. > It is a brilliant and yet so simple technique. (Until > yesterday, I blissfully believed that a fast clocking counter > was one's best bet.) > > Accordingly, I did a bit of research on the topic: > > Google took me to a lot of interesting sites (as Tom van Baak > noted). However, I found only one company, Acam (which is the > one you also pointed out), that sell these things inside an IC. > > I also read the article posted earlier by Tom van Baak > (Thanks Tom! This is indeed a very comprehensive article.) It > turns out that you can implement a very elegant linear > interpolator using a digital delay line inside a FPGA. It is > called the Vernier technique. From the article I understand > that resolutions of between 10s and 100s of picoseconds have > been achieved for various designs. > > Has anyone else used this Vernier technique with delay lines? > I seems pretty neat to me. > > It means my hardware doesn't need to change. A software > update will do the > trick :) > > Regards, > > Stephan. > > PS: Thanks Ulrich for the link to your M12+T results. I was > looking all over the place for these results for a long time now. > > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-> bin/mailman/listinfo/time-nuts > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
