[hpsdr] DFC

[ad0es]

Hi,

DFC in a nutshell:

antenna > bandpass filter > pre-amp > ADC > CPU/GPU/software

This speaks to the simplification of the RECEIVE portion of the problem.
The xmit portion will remain similar to the current situation.

There will be DACs etc. for xmit on the card.  There will be an FPGA on
the card to run various functions.  But the FPGA will no longer do
any of the FFT/DSP processing, greatly reducing its complexity.
It probably wont have CODECs for speaker, the PC would provide
those features via its soundcard. (will have some degree of support
for mike/key on card, thats a question for Phil).

FYI:  I am only involved in the CPU/GPU portion of the project, if I 
mis-spoke
in any of my statements above, please correct me!

Steve AD0ES

On 05/12/2016 07:19 AM, Glen wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Oh, I must be confused.  It was my impression that DFC would
> eliminate the need for the FPGA card.
>
> I 'assumed' the Cuda cores replace the FPGA processing, and the PC
> was used for everything else.
>
> I also 'assumed' the daughter DFC card on the video card has the DDC
> DUC hardware on it.
>
> I would guess it would not have CODECs on it for mic and speaker.
>
> Hence, the need for more info! ;-)
>
> 73
>
> Glen K4KV
>
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