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Correct a sample rate from adc #60

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F4HTB opened this issue Jun 23, 2023 · 2 comments
Open

Correct a sample rate from adc #60

F4HTB opened this issue Jun 23, 2023 · 2 comments

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@F4HTB
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F4HTB commented Jun 23, 2023

Hello,

Sorry to post this here since it's not a problem but a question I don't know where to post it.
Is it possible to fix a quartz sampling clock fault of an adc in command line?
For example I have an I/Q stream of 384khz 16bits with an error of 5pps and whose receiver frequency is 50.500mhz.
In fact, it is not only a question of correcting the frequency offset but also the induced excursion.
If anyone has an answer?
Many thanks in advance

@ha7ilm
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ha7ilm commented Jun 23, 2023

If it's an RTL-SDR, there's something like a -p parameter on the command line tool, I think.

@ha7ilm
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ha7ilm commented Jun 23, 2023

There is the rational_resampler_ff or the fractional_decimator_ff but these are for floating point signals. Maybe you could apply them to each of the channels separately...

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