My interactive presentation on digital signal processing ( previous post with video) is now available on the web, at visual-dsp.switchb.org! More details, source code, etc. at the site.

(P.S. I'll also be at the next meetup, which is tomorrow, January 21, but I don’t have another talk planned. (Why yes, I did procrastinate getting this site set up ( Read more... )

I have really failed to get around to blogging what I've been doing lately, which is all software-defined radio. Let's start fixing that, in reverse order.
Yesterday, I went to a Bay Area SDR meetup, “Cyberspectrum” organized by Balint Seeber and gave a presentation of visual representations of digital signals and DSP operations. It was very well ( Read more... )

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Source: What is it? set 403 (a weekly "Identify these objects" puzzle).