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Talk:Fractional Fourier transform

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This is an old revision of this page, as edited by SineBot (talk | contribs) at 19:56, 27 July 2009 (Signing comment by Dai mingjie - ""). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

fractional fourier transfrom - a significant revolution??

Yes, it is. Namias introduced it to quantum mechanics, but I'm not sure what they use it for in that field. In optics though, it's quite important. The relevant paper is, A.W. Lohmann, “Image rotation, Wigner rotation and the fractional Fourier transform,” J. Opt. Soc. Am. A 10, 2181–2186 (1993). That introduced it to the optics community, which uses it to model the effect of quadratic phase systems. - jhealy 22:13, Aug 24, 2006 (GMT)

How does one actually understand the Figure "Time/Frequency Distribution of Fractional Fourier Transform."? I find this quite confusing, are these actually spectrograms? —Preceding unsigned comment added by Dai mingjie (talk • contribs) 19:55, 27 July 2009 (UTC)[reply]

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