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Uncommon Multirate Signal Processing for Real-Time Systems
Jim Shima - Watch Now - EOC 2025 - Duration: 57:30
Thanks, glad you enjoyed it.
Indeed, now you are talking! Yeah, lots of cool optimizations can fall out of that. And for sure it would be simpler, since in my experience skipping over zero coeffs in a polyphase filter requires special logic (which typically breaks any pipelining). And not having to do full FFT would be more icing on the cake. Just straight up savings by just not doing those operations...
Excellent! The part comparing T2F and F2T channelization approaches was very insightful!
do you have the code available for the presentation?
What were you looking for? I have a smattering of matlab code up on github here:
https://github.com/recreationalcombatant/dspconf_2025
This talk alone justifies the fees for the whole conference. What an insight! Thank you very much.
Thanks, glad you got something useful out of it!
Awesome talk! Presumably some pretty nifty optimizations are possible if one implements a 4 channel WOLA channelizer with a halfband filter and osr=2😉 May come out simpler than the polyphase way at least for full custom ASIC implementation.