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Re: [SCIRUN-USERS] tikhonov module


Chronological Thread 
  • From: Alireza Ghodrati <aghodrat@ece.neu.edu>
  • To: ashok kumar <spruceupak@hotmail.com>
  • Cc: scirun-users@sci.utah.edu
  • Subject: Re: [SCIRUN-USERS] tikhonov module
  • Date: Thu, 08 Apr 2004 11:58:39 -0400
Hello, Ashok,
The Tikhonov module is designed to solve the inverse problem. The forward matrix is a matrix that relates the measurements to the unknowns so it has a "m" by "n" size. "m" is the number of measurements and "n" the number of unknowns (like source potentials or currents). The output of Boundary element module can be used directly as an input to Tikhonov module but for the Finite element I don't think you can use it directly. You have to first find a forward matrix for the problem and then apply it to Tikhonov module. Best
Alireza



ashok kumar wrote:

sir,

please give me details abt tikhonov module.

i  am  not clear with  the forward matrix   .
the forward matrix output from module such as applyfemvoltagesource has the dimension of original stiffness matrix.

and the measured body surface potential which i extracted from field boundary .

how to get the forward matrix for input to tikhonov module by finite element method with the vector of measured potentials which is obtained as above.
please  explain the manipulations needed to use tikhonov module .

yours sincerely
ashok kumar

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