Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Fourier's transform - z-direction

Please login with a confirmed email address before reporting spam

Hello everybody,

I try since one week to perform Fourier's transform of a spatial-function along the direction "z" only.
I mean, I have a function f(x,y,z) first performed by COMSOL (it is the solution of a PDE...) depending on the spatial variables x, y, z. I would like to obtain Fourier's transform of this function only along the z-direction [i.e. f(x,y,z)-------TF------> f(x,y,q) = \int_{-infinity}^{+infinity} f(x,y,z)*exp(q*z) dz ].

- COMSOL can perform this calculation ? I think that I have to draw a new axis "z" (to perform this integration) but really I do not know how draw this axis from - infinity to + infinity !!
- Have you some solutions to perform this calculation ? Unfortunately this problem is not treated in COMSOL's book.

Thank you for your help !

Nils

0 Replies Last Post 2010年11月29日 GMT-5 10:25
COMSOL Moderator

Hello Nils Bourduoin

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.