On 9/30/2020 12:47 PM, Magnus Danielson wrote:
This is all true, except for the last part, since you really need to consider the duo of Jim Barnes and David Allan. If you look at the early work, their work and contribution overlap. Some of the important math was actually discovered by Jim Barnes. They had to work hard to figure out a way to overcome the lack of a meaningful mean value, and they did that by reducing the mean to a minimum, over 2 frequency values and then average over that.
Wow, I never realized that. My bad. It does possibly explain the fact that Dave never used the term "Allan variance" but rather always called it the "two-sample variance." Although I suspect that he would have done that anyway even if he were the undisputed inventor of ADEV. He also used "sigma sub-y of (2,tau)" rather than the usual "sigma sub-y of tau" nomenclature. Rick N6RK _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
