Re: Power Spectrum 2D field
- To: mathgroup at smc.vnet.net
- Subject: [mg78338] Re: Power Spectrum 2D field
- From: dh <dh at metrohm.ch>
- Date: Thu, 28 Jun 2007 06:27:53 -0400 (EDT)
- References: <f5vqlc$inj$1@smc.vnet.net>
Hi Matteo, please describe your problem more accurately. A 2 dim (vector) field over what manifold? What the power of your vector, magnitude squared? Daniel matteo.convertino at unipd.it wrote: > Is there someone who can help me to calculate and plot the power spectrum > of a 2D field? > I have already calculated the power spectral density (it's a 3D function) > of the matrix through the FFt of the same matrix, you can use various > techniques, for example using the periodogram, but now i need the power > spectrum of the field so...? How can i do? > > (PS: for example in turbulence you give a 3D field and you can compute the > power spectra, how? Therefore I am in the 2D input case) > > Is there someone who have already done any Mathematica routine? > > Thank you very much, > > Matteo. > > > _______________________________________________________ > Matteo Convertino > > PhD student, advisors: Prof. Andrea Rinaldo and Prof. Amos Maritan > IMAGE Dept. and International Center for Hydrology "Dino Tonini" > Via Loredan 20, I-35131 Padova > Graduate School in Civil and Environmental Engineering Sciences > University of Padova, Italy > > http://digilander.libero.it/matconv/ > http://digilander.libero.it/matconv/ThesisMaterials.html > http://www.image.unipd.it/scuola_di_dottorato/ > Office phone: +39 049 8275445 > Fax: +39 049 8275446 > Personal phone: +39 349 1750320 > E-mail: convertino at idra.unipd.it and matteo.convertino at unipd.it > Skype ID: matteo_convertino > _______________________________________________________ > >