Spectral Analysis: alternatives to Fourier Transforms?

[wimms]

hi,

Could someone point me to some good material that relates to problems of (computational) spectral analysis? I understand FFT well enough, and although I'm not very good with math I'm willing to chew. What I'm seeking is some alternative approach to Fourier transformation (ie. from time-domain into dynamic frequency domain).

I'm not even sure what exactly I'm after, for now I just want to learn all approaches that have been tried. I don't even know what to google for. FFT gives too much noise..

thanks for pointers.

[Haelfix]

There's several 'kernels' you can pick. Popular ones are fourier transforms, laplace transforms and wavelet transforms.

I suggest reading up on the latter

[Njorl]

There's also Kramers-Kronig transforms.

http://www.galactic.com/Algorithms/kk_trans.htm

I did a couple years of FTIR spectroscopy, millimeter waves really, not IR. It is hard to beat.

Njorl