Thank you all for your responses. I will look into the suggested libraries
and blocks to see if they can work for me.
My goal right now is to simulate a dynamic frequency offset on higher
frequency (2.4GHz and above) and wideband signals (1 MSps and above) for
say a LEO satellite. This scenario
Hi all,
Whether a resample (i.e., group delay change) is needed depends on the
intended application. The question you need to ask yourself is: is the
fact that in real life the Doppler at each frequency in your passband is
slightly different because they are all different carrier frequencies
Jose,
During my talk at the last GNU Radio Conference (September 2022), I was
asked by an audience member about how to handle Doppler for spacecraft
links so I later developed Transmit/Receive Flowgraphs with Doppler that
are located at:
https://github.com/DavidToddMiller/gr-HighDataRate_Modem
Hi Jose,
I would take a look at gr_sattelite. The work described here
https://destevez.net/2022/07/real-time-doppler-correction-with-gnu-radio/
was integrated. A true doppler correction would need to also
resample, but the time varying frequency correction may be enough for
your use case.
Tim
GNU Radio has a number of Impairment and Channel Model blocks. Have you
looked to see if any of these blocks already does what you need?
On Thu, Jul 27, 2023 at 4:19 PM Jose Ruvalcaba wrote:
> Hello,
>
> I am trying to simulate an accurate representation of Doppler Shift in a
> channel and I
