Regarding SDR block, interpolation parameter?

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ARHUM AHMAD
ARHUM AHMAD 2023-4-25
评论： Karunya Choppara 2023-6-14
Can somple please help me understand. what exactly/physically interpolation parameter do in SDRu block and why it is only for ettus SDR not in pluto.
I know it help to get required baseband sample rate. But I want to know what exactly it do to the signal.

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回答（1 个）

Gokul Nath S J
Gokul Nath S J 2023-5-24
Hi Arhum,
It seems that would like to understand the physical interpretation of the interpolation parameter in the SDRu block. Please note that the radio uses the interpolation factor when it upconverts the complex baseband signal to an intermediate frequency (IF) signal. The interpolation factor does the multiplication factor to adjust the frequency.
For more information, kindly refer the following documentation.
https://in.mathworks.com/help/supportpkg/usrpradio/ug/sdrutransmitter.html
with regards,
Gokul Nath S J
  2 个评论
ARHUM AHMAD
ARHUM AHMAD 2023-5-24
One follow-up question in this question.
What happen if we use in valid interpolation/decimation value as mention in matlab help.
Karunya Choppara
Karunya Choppara 2023-6-14
Hi Arhum,
For Pluto radio, the API allows to directly provide the Baseband Sample Rate, where as for the USRP radio, the Baseband Sample rate for transmitter is derived as (Master Clock Rate)/(Interpolation Factor).
For detailed radio setting use the info method on this page
https://in.mathworks.com/help/supportpkg/usrpradio/ug/comm.sdrureceiver.info.html

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