Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2006
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

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

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64209] Re: [mg64180] Re: 2D FT of f(r): Fast Hankel Transforms
  • From: "David Annetts" <davidannetts at aapt.net.au>
  • Date: Mon, 6 Feb 2006 02:49:08 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Hyper 

> > 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?

They enter in electromagnetic prospecting in fields of electric dipoles.  I
believe they are also used in magnetic & gravimetric prospecting.

Regards,

Dave.


  • Prev by Date: MeijerG evaluates an imaginary part, which does not exist
  • Next by Date: Digital Image Processing: showing graylevel images in
  • Previous by thread: Re: 2D FT of f(r): Fast Hankel Transforms
  • Next by thread: Problem to evaluate a function inside a function