On 05/04/2016 10:38 AM, Attila Kinali wrote:
On Tue, 3 May 2016 22:31:14 +0200
Magnus Danielson <[email protected]> wrote:
An alternative to the edge estimator method is to continuously sample,
mix with a reference frequency, decimate and then do arc-tangent of the
I/Q samples. This is what is used for phase-noise measurement such as
the Symmetricom/Microsemi test-kits, TimePod, and also the new R&S
phase-noise system.
The "signal" is not a sinusoid, but discrete events. Think of it
as incomming pulses and you want to measure their arrival time.
Which cuts away that option, yes. Naturally. The mixdown variant assumes
a repeating pulse patter, but it does not assume sine.
Cheers,
Magnus
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