Re: Resampling radio data

On Tue, Feb 16, 2021 at 4:14 PM Mark Koenig <mark.koenig@iubelttechnologies.com> wrote:

Hello,

 

I am receiving data from a radio at 23Msps, and I would like to resample to a rate of 25Msps in which my software program can ingest it.  I am aware of the Fractional Resampler and the Rational Resampler.  Is one better than other, take less CPU cycles, etc.?  Is there a different block which would suit my needs more efficiently?  Should I instead look to implement the resampling within C++ as opposed to adding another block to my flowgraph?

 

I am going to do the above with the following rates:  46Msps -> 50Msps, 92Msps -> 100Msps.

How much of your bandwidth are you actually looking to keep intact?  How fast is your host CPU?

Brian