Brooke Clarke wrote: > Hi Bruce: > > How to get a copy? > > Have Fun, > > Brooke Clarke > > w/Java http://www.PRC68.com > w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml > http://www.precisionclock.com > > >> /Time Interval Averaging: Theory, Problems, and Solutions/, David Chu, >> HP Journal June 1974 pp12-15. >> >> >> Bruce >> >> >> > > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > Brooke
Try: http://www.hparchive.com/Journals/Low-Resolution/HPJ-1974-06-Low-Resolution.pdf or if you prefer higher resolution: http://www.hparchive.com/Journals/HPJ-1974-06.pdf Article is about improving the accuracy and resolution of time interval measurement by averaging, which is exactly what the Brooks Shera phase detector purports to do. Other higher resolution phase detectors will have the same problems unless there is sufficient gaussian noise present. The hanging bridges etc are one manifestation of the effects detailed in the article. However even with clean non quantised PPS signal positioning the time interval counter will itself produce similar artifacts if there isn't enough noise. The higher the resolution of the TIC used, the less noise that is required to destroy the coherence. Bruce _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
