[hpsdr] HPSDR / PowerSDR hardware selection
Lyle Johnson
kk7p at wavecable.com
Sun May 25 11:14:27 PDT 2008
> I know the Analog Devices Blackfin processor is running uClinux as a
> viable OS for DSP,. That could be a really good open source platform
> for Sasquatch with all the free toolchains.
But is a 16-bit fixed point processor. Used very carefully, it can do a
lot. But you end up focusing on the details of the chip instead of the
objective of the algorithm. If you want more than 96 dB of
at-the-instant dynamic range, it won't do it -- and the 96 dB implies
lots of quantization noise for low level signals which adds it own
artifacts to the recovered audio
73,
Lyle KK7P
1211739267.0
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