Re: [time-nuts] Paper about DCF77 performance

2012-06-17 Thread Daniel Engeler
> > The clock-correction seemed a bit crude. I expected to find a PI-filter > and a phase-accumulator to steer the 300 MHz to 37 MHz synthesis. Actually I do use a phase accumulator, in Fig. 26 it's inside the "binary search" block. The phase is accumulated during several seconds (longer for a no

Re: [time-nuts] Paper about DCF77 performance

2012-06-17 Thread Daniel Engeler
27;d be glad to hear your feedback. --Daniel Engeler ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] Paper about DCF77 performance

2012-06-14 Thread Daniel Engeler
Hi Attila Thanks for the feedback. > * you have a lot of simulation and measurments on BER vs SNR. For time-nutty > needs that's not so relevant. An ADEV plot would be much more informative > on the stability. > * Also some data on the absolute timing variations vs time would be > nice to have.

[time-nuts] Paper about DCF77 performance

2012-06-13 Thread Daniel Engeler
2411 "Performance Analysis and Receiver Architectures of DCF77 Radio-Controlled Clocks", by Daniel Engeler IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control (May 2012) Abstract: DCF77 is a longwave radio transmitter located in Germany. Atomic clocks generate a 77.5-kHz ca