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  1. Xref: sparky sci.engr:2311 sci.physics:19473
  2. Newsgroups: sci.engr,sci.physics
  3. Path: sparky!uunet!usc!sol.ctr.columbia.edu!destroyer!csd475b!newsserv!ellis
  4. From: ellis@msl475a.erim.org (Ken Ellis)
  5. Subject: Re: Do scientists or engineers need this sort of program? (force lines)
  6. Message-ID: <ELLIS.92Nov23081610@msl475a.erim.org>
  7. In-reply-to: diesel@odie.ee.wits.ac.za's message of Mon, 23 Nov 1992 07:17:22 GMT
  8. Sender: news@newsspool.erim.org
  9. Organization: Environmental Research Institute of Michigan, Ann Arbor, Michigan
  10. References: <1992Nov18.172004.17579@husc3.harvard.edu>
  11.     <1992Nov19.185034.1318@Princeton.EDU> <diesel.71@odie.ee.wits.ac.za>
  12. Distribution: usa
  13. Date: 23 Nov 92 08:16:10
  14. Lines: 20
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  16.  
  17. This sort of a program would do what is called "inverse scattering":
  18. i.e., given a measured field, determine what the source function is
  19. that created that field. People have been working on this problem for
  20. years and many journals are devoted to this subject. In particular, it
  21. forms the basis for synthetic aperture radar, computer aided
  22. tomography, and seismic imaging. Lots of algorithms have been
  23. developed and software has been written to solve specific inverse
  24. scattering problems.
  25.  
  26.  
  27. --
  28. _____
  29. \                                      |  Opinions expressed here are solely
  30.  \   ERIM   Ken Ellis                  |  those of the author and do not
  31.  /          ellis@erim.org             |  necessarily represent those of 
  32. /____|                                 |  his employer. 
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