[time-nuts] M12+T sawtooth correction and additional filtering

[Azelio Boriani]

To use the Kalman filtering technique you need a model of the sawtooth
error... the model of the error is simply the quantization of the UTC PPS
done by the M12 clock, so I think that in the sawtooth correction output by
the M12 you have already all you need.

On Wed, May 9, 2012 at 12:20 AM, Jerry Mulchin <jmulchin at cox.net> wrote:

> OK, so before I commit to my Sawtooth correction design, I had a thought
> about adding
> additional filtering to the sawtooth corrections using a Kalman filter.
>
> The Kalman filter would be driven using the @@Hn data coming from the
> M12+T reciever.
>
> Is this something worth doing or am I expecting too much from the GPS
> system timing or
> the M12+T receiver?
>
> Advice and comments welcomed.
>
> Thanks
> Jerry
>
>
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