Yes, this is the Smith I've read through. I purchased the book as I like to read in lots of places. I have a pretty good 'book learning' understanding of the issues but book learning and practical experience are often quite different!
There's much to experience when one has limited resources and that, of course, is part of the challenge! Thanks for the reply Ward Ae6ty -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jim Sent: Wednesday, March 25, 2009 2:49 PM To: [email protected] Subject: Re: [soft_radio] Linearity, 3rd OID, Waveform Compression, etc... 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 > > > > ------------------------------------ Yahoo! Groups Links
