[time-nuts] GPSDO simulation tool

[Magnus Danielson]

Hej Lars.

On 22/03/14 23:25, Lars Walenius wrote:
> Many thanks Tom for an excellent tool and also the data you have provided. You don´t happen to have data for a non sawtooth corrected M12?
>
> Another question: how do you insert the options for ticres and dacbits? With “gpsim1 avg1=10 gps-mtk3339.txt  ocxo.dat  >gpsdo.txt” I managed to get different prefiltering in the same way as you had in your graphs. But inserting dacbits=10 instead of avg1=10 gave an error for me.

Adding these lines in main solved that problem:
         SET_PARAM(ticres)
         SET_PARAM(dacbits)

I did some simulations with no, 10 ns and 100 ns quantization, which 
simulates the same thing.

I wonder how "clean" the actual hardware delay really is, as I was 
looking at the data.

Cheers,
Magnus
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