Hi Daniel,
On 17/06/12 23:18, Daniel Engeler wrote:
Here is the PDF version of my paper "Performance Analysis and Receiver
Architectures of DCF77 Radio-Controlled Clocks", which was published in the
May 2012 issue of the IEEE Transactions on Ultrasonics, Ferroelectrics, and
Frequency Control:
http://goo.gl/sWjFX
Have fun reading! I'd be glad to hear your feedback.
First of all, many thanks for providing us with a link to the paper.
Second, it's a good paper. It includes the inherent re-occurence of the
signal which can be utilized. Good to see that. There is many layers of
analysis, so one has to be patient when reading this to see it through.
I was lacking a frequency/time stability measurement. It would have been
good to know how good it is in time stability. TIE, ADEV and TDEV plots
would have been welcome. Possibly even an MTIE.
Also, I would have enjoyed a stability analysis for code and carrier
phase separately. 24h plot of them shifting around with a GPS receiver
as reference would suffice.
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.
Cheers,
Magnus
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