Globe Trotter
2005-Nov-08 21:46 UTC
[R] OT: on the DFT of a periodic Gaussian kernel (analytic representation?)
Hi, I have a one-dimensional N-coordinate periodic Gaussian kernel defined by dnorm(c(0:N/2,(N/2-1):1),sd = h) where h is the bandwidth/smoothing parameter/FWHM. I want to calculate the Fourier transform of this, which can be done using a FFT. But my question is: is it possible to get the Discrete Fourier transform of this sequence analytically? Do there exist references on this? Many thanks and best wishes, Aarem