Re: Where can I get non-radix-2 FFT matlab model?

"iulydj" <iulydj@xxxxxxxxx> wrote in news:1146053339.344120.297390
@y43g2000cwc.googlegroups.com:

Hello.I'm tring to use the FFT from Xilinx Block set to get the phase
of a signal.the FFT from Xilinx gives me the real and the imaginary
part of the signal.I need the first harmonic.U know how to get the
phase ??

10X



arctan(imag(x)/real(x)) will give phase in radians

--
Scott
Reverse name to reply
.

Relevant Pages

  • Re: Xilinx FFT C-sim model
    ... I wasn't very surprised to find that 99% of my execution time ... I don't have direct experience with the Xilinx simulation, ... -- mallocand freedon't belong in an FFT core; ... I've done one simulation using the Matlab Fixed Point Toolbox. ...
    (comp.arch.fpga)
  • Re: Confused about FPGA devices recommended by Xilinx for my FFT project
    ... In your case it's not the number of LUTs that defines the border, but the BRAMS. ... I have selected spartan 3E family for an FFT project due to its low ... We need 578 slices, 18 BRAM, 2 mults. ... Can anyone explain why xilinx recommends a 1.6Mgate device for the FFT ...
    (comp.arch.fpga)
  • FFT phase errors
    ... I've a c++ code about FFT and when i calculate the phase parameters i ... from the calculated phase. ... imaginary part is positive, add 180°(or PI radians). ... discontinuities, even if it means that the phase extends above PI, or ...
    (sci.image.processing)
  • Re: FFT by hand. Disorder of output.
    ... For my program I implementFFT. ... Bit Reverse the input ... where the DFT is defined as ... whereas Cormen & al's book follows the DFT definition ...
    (comp.soft-sys.matlab)
  • FFT phase errors
    ... I've a c++ code about FFT and when i calculate the phase parameters i ... from the calculated phase. ... imaginary part is positive, add 180°(or PI radians). ... discontinuities, even if it means that the phase extends above PI, or ...
    (sci.math.num-analysis)