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MathGroup Archive 2006

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Re: 2D FT of f(r): Fast Hankel Transforms

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64201] Re: 2D FT of f(r): Fast Hankel Transforms
  • From: AES <siegman at stanford.edu>
  • Date: Sun, 5 Feb 2006 04:44:55 -0500 (EST)
  • Organization: Stanford University
  • References: <drus3g$fnf$1@smc.vnet.net> <ds1ruu$fmh$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

In article <ds1ruu$fmh$1 at smc.vnet.net>,
 "Hypermars" <hypermars00 at yahoo.com> wrote:

> "David Annetts" <davidannetts at aapt.net.au> wrote in message 
> news:drus3g$fnf$1 at smc.vnet.net...
> 
> > You can implement them as a convolution with a digital filter.  Google for
> > various papers so you can derive coefficients, but one I'd recommend is
> > JOHANSEN, HK, AND SORENSEN, K. Fast Hankel transforms in Geophysical
> > Prospecting from a "fair while ago".
> 
> I'll certainly look into it, thank you.  The choice of journal is 
> intriguing...what are the applications of FHTs to Geophysics?

   Earthquakes spread out radially on a surface?  (Or tsunamis?)

> 
> Bye
> Hyper


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