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Sparse Fast Fourier Transform, The faster-than-fast Fourier transform
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post Feb 10 2012, 19:55
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I don't know if this topic was already mentioned here (I wasn't able to find it).

Somebody here could find it interesting:

MIT news article: The faster-than-fast Fourier transform

sFFT web page: sFFT: Sparse Fast Fourier Transform

Best regards.

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post Feb 11 2012, 13:00
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Just wondering: sFFT (based on DFT? unsure.gif ) compromises frequency-domain in floating accuracy areas to approximate for the sake of performance? [ I may need to do more homework tongue.gif ]

Second inquiry: this rounding is inaccurate not reliable to rebuild original parameters? (possibly inaudible, maybe not)

My inquires are on fundamental levels for the purpose of learning for any other interested readers.

Long live HA wink.gif

"Something bothering you, Mister Spock?"
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