Is this the Smith you read? This one showed me the way
http://www.dspguide.com/ (free book)
He has a good chapter on filters ... looks as if he teaches "Hilbert"
without saying Hilbert
unlike the fft a search on "hilbert" on the web yields nothing of use ??
(maybe I didn't use the right search terms) ... I think you take the
impulse response (Smith calls it the "Filter kernal") and use them for
the Hilbert coefficients
I am sort of vague on this ... it has been a couple of years since I
needed to build a filter
Jim KI6MZ
ward harriman wrote:
>
> Gentlemen:
>
> I have been working on the design and implementation of a stripped
> down Software Defined Radio. Specifically, I have been using the
> dsPIC33 as a processor and the MAXIM 9851 stereo CODEC. I have
> implemented several ‘front end’ modules as well as using the softrock
> and R2 modules. I am presently finishing up my Class-E output amplifier.
>
> I have been trying to find a discussion thread which addresses the
> beginner topics of SDR. Things like fast convolution, block floating
> point FFT implementations, Hilbert Transform implementations,
> limitations of fixed point arithmetic, etc. I have read and re-read
> Lyons and Smith.
>
> I am aware of the various SDR software projects and have examined the
> code bases for several of them. Unfortunately, reverse engineering
> does not really help one understand the issues involved nor help debug
> one’s own implementation(s). For me, it is the journey that leads to
> understanding. I’m hoping to find a guide!
>
> Can anyone on this thread point me to an ongoing discussion or an
> archive through which I can see what others have experienced and
> discovered?
>
> My thanks, sorry to have interrupted your day.
>
> Ward
>
> Ae6ty
>
>
>
>
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