Re: how to find the best ADC step size?

From: Randy Yates (randy.yates_at_sonyericsson.com)
Date: 12/22/04


Date: 22 Dec 2004 10:55:32 -0500


"Clay S. Turner" <Physics@Bellsouth.net> writes:
> [...]
> > I'm having trouble with this. Yes, I see that a Huffman code attempts to
> > make
> > (symbol length)*(symbol frequency) constant over all symbols. How does
> > change
> > anything about the underlying distribution, though?
>
> The idea is to try to make each symbol contribute equally to the overall
> process. Imagine looking at your data after a huge number of symbols was
> received. The idea is to make the info provided by each type of symbol
> contribute equally.

But this Huffman coding won't do that. Choosing a representation for a
symbol doesn't change the probability of the symbol occurring. It
does, however, minize the average symbol rate - I certainly see
that. Perhaps I'm being blind?

-- 
Randy Yates
Sony Ericsson Mobile Communications
Research Triangle Park, NC, USA
randy.yates@sonyericsson.com, 919-472-1124