[USRP-users] rx streaming samples
marcus.mueller at ettus.com
Wed Apr 29 03:03:45 EDT 2015
the USRPs are devices that usually have a front-end (integrated in
things like the B200, or on the daughterboards in cases of N200/X300
etc) which takes the RF signal, mixes it with the LO frequency, and then
gives a complex baseband to a dual-ADC. That dual-ADC samples the signal
and thus makes it a digital baseband signal.
Then, there's digital "fine-tuning" in the DSP logic, and decimation to
the sampling rate you request, but you don't have to concern you too
much (or at all) -- what's important is that, yes, the USRP will always
give you digital complex baseband samples, with the baseband
representing the RF passband at the the specified center frequency.
On 04/29/2015 12:51 AM, Awantha Jayasiri via USRP-users wrote:
> Just a quick question, when a signal is streamed back(using both
> gnu_radio and direct UHD access) is the frequency of the recorded
> signal is lowered by the specified center frequency?
> Thanks and regards
> USRP-users mailing list
> USRP-users at lists.ettus.com
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