Chris Albertson wrote:
> This was a very expensive system but now only could make FFT/FFT-1
> chips using an FPGA. After doing this a ham=style SDR could be run
> with even a low-end micro controller. Simply pre-store all the filters
> The linear nature of the FFT really does mean you can but
> _
On 8/13/07, Robert McGwier <[EMAIL PROTECTED]> wrote:
> Phil:
>
> Thank you. I moved the scaling by p->scale into the constructor and
> just commented out the scaling in the running routine (with a notation)
> in ovsv.c in both the DttSP in PowerSDR and in ab2kt/dttsp-ng branch in
> sdr_linux.
>
>
Phil:
Thank you. I moved the scaling by p->scale into the constructor and
just commented out the scaling in the running routine (with a notation)
in ovsv.c in both the DttSP in PowerSDR and in ab2kt/dttsp-ng branch in
sdr_linux.
PLEASE anytime someone finds something like this, point it out.
On 8/13/07, Robert McGwier <[EMAIL PROTECTED]> wrote:
> Phil:
>
> Thank you. I moved the scaling by p->scale into the constructor and
> just commented out the scaling in the running routine (with a notation)
> in ovsv.c in both the DttSP in PowerSDR and in ab2kt/dttsp-ng branch in
> sdr_linux.
>
>
Good point! I will look at it.
Bob
Philip Covington wrote:
> * High Performance Software Defined Radio Discussion List *
>
> Frank, Bob,
>
> In DttSP ovsv.c, the output of the ifft is normalized over each block.
> The scaling factor is computed as scale = 1.0/(real) fftlen.
>
> I a
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