Hi, I found this little text that may be an amusing read on how ADEV and MDEV came to be among other things. https://ethw.org/w/images/5/5f/Allan_OH_-_MVAR_TVAR_and_OptimumPrediction.pdf The Lighthill book is very important little thing, which few seems to know. It works on Fourier transform quite differently than any other book on Fourier transforms I've seen. It is not meant as a strict book, but a book to help students on their way, and it did help Jim and Dave in their studies for sure. Similarly the Snyder pre-cursor to MDEV seems to be read by few. It provides the necessary sqrt(N) improvement as achieved with overlapping frequency estimations. Cheers, Magnus

FYI: The main interview (about 50 pages) with David Allan is a really good read: https://ethw.org/Oral-History:David_W._Allan The set of 5 PDF addenda (~2 pages each) to the main interview are: "Technical Background on the Fundamental Noise Problem" https://ethw.org/w/images/e/e5/Allan_OH_-_FundamentalNoiseProblem.pdf "The Development of MVAR and TVAR" https://ethw.org/w/images/5/5f/Allan_OH_-_MVAR_TVAR_and_OptimumPrediction.pdf "Perspectives on the Development of Commercial Cesium Beam Clocks" https://ethw.org/w/images/0/02/Allan_OH_-_CommercialCesiumClockDevelopment.pdf "Dave's Story on how GPS helped NASA/JPL synchronize their Deep Space Network tracking stations" https://ethw.org/w/images/a/ac/Allan_OH_-_GPSandtheDeepSpaceNetwork.pdf "Sound of Music Experience in Italy (1969)" https://ethw.org/w/images/b/b3/Allan_OH_-_MoreTravelStories.pdf In general, the Engineering and Technology History Wiki (ETHW) is a fantastic historical resource. https://ethw.org/Main_Page /tvb On 10/7/2020 3:05 AM, Magnus Danielson wrote: > Hi, > > I found this little text that may be an amusing read on how ADEV and > MDEV came to be among other things. > > https://ethw.org/w/images/5/5f/Allan_OH_-_MVAR_TVAR_and_OptimumPrediction.pdf > > The Lighthill book is very important little thing, which few seems to > know. It works on Fourier transform quite differently than any > other book on Fourier transforms I've seen. It is not meant as a strict > book, but a book to help students on their way, and it did help Jim and > Dave in their studies for sure. > > Similarly the Snyder pre-cursor to MDEV seems to be read by few. It > provides the necessary sqrt(N) improvement as achieved with overlapping > frequency estimations. > > Cheers, > Magnus >

On 10/7/20 6:00 AM, Tom Van Baak wrote: > "Dave's Story on how GPS helped NASA/JPL synchronize their Deep Space > Network tracking stations" > https://ethw.org/w/images/a/ac/Allan_OH_-_GPSandtheDeepSpaceNetwork.pdf > "they flew me out to Goldstone in their corporate jet to look at that facility, " That would be a NASA plane.. I know we used to fly a Beech QueenAir out to Goldstone. Now, it's just a long drive through the desert.

Hi, I managed to obtain the Lighthill book 'Introduction to Fourier Analysis and Generalised Functions' and I scanned it. It provides a different look on Fourier Analysis. Feel free to download it from my private cloud: dschuecker.dyndns.org name/pw guest1 have fun. Cheers Detlef Am 07.10.2020 um 12:05 schrieb Magnus Danielson: > Hi, > > I found this little text that may be an amusing read on how ADEV and > MDEV came to be among other things. > > https://ethw.org/w/images/5/5f/Allan_OH_-_MVAR_TVAR_and_OptimumPrediction.pdf > > The Lighthill book is very important little thing, which few seems to > know. It works on Fourier transform quite differently than any > other book on Fourier transforms I've seen. It is not meant as a strict > book, but a book to help students on their way, and it did help Jim and > Dave in their studies for sure. > > Similarly the Snyder pre-cursor to MDEV seems to be read by few. It > provides the necessary sqrt(N) improvement as achieved with overlapping > frequency estimations. > > Cheers, > Magnus > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. >

Hi, I managed to obtain the Lighthill book 'Introduction to Fourier Analysis and Generalised Functions' and I scanned it. It provides a different look on Fourier Analysis. Feel free to download it from my private cloud: ftp://dschuecker.dyndns.org/Lighthill_Introduction_to_Fourier_Analysis_and_generalised_functions.pdf name/pw guest1 have fun. Cheers