3.0 API Reference

polar_fft_test.c File Reference

NFFT-based polar FFT and inverse. More...

#include <math.h>
#include <stdlib.h>
#include "util.h"
#include "nfft3.h"

Go to the source code of this file.

Functions

int polar_grid (int T, int R, double *x, double *w)

Generates the points $x_{t,j}$ with weights $w_{t,j}$ for the polar grid with $T$ angles and $R$ offsets.

int polar_dft (fftw_complex *f_hat, int NN, fftw_complex *f, int T, int R, int m)

discrete polar FFT

int polar_fft (fftw_complex *f_hat, int NN, fftw_complex *f, int T, int R, int m)

NFFT-based polar FFT.

int inverse_polar_fft (fftw_complex *f, int T, int R, fftw_complex *f_hat, int NN, int max_i, int m)

inverse NFFT-based polar FFT

int main (int argc, char **argv)

test program for various parameters

Detailed Description

NFFT-based polar FFT and inverse.

Computes the NFFT-based polar FFT and its inverse for various parameters.

Author:: Markus Fenn

Date:: 2006

Definition in file polar_fft_test.c.

Generated on 1 Nov 2006 by Doxygen 1.4.4


Functions
int	polar_grid (int T, int R, double x, double w)
	Generates the points $x_{t,j}$ with weights $w_{t,j}$ for the polar grid with angles and offsets.
int	polar_dft (fftw_complex f_hat, int NN, fftw_complex f, int T, int R, int m)
	discrete polar FFT
int	polar_fft (fftw_complex f_hat, int NN, fftw_complex f, int T, int R, int m)
	NFFT-based polar FFT.
int	inverse_polar_fft (fftw_complex f, int T, int R, fftw_complex f_hat, int NN, int max_i, int m)
	inverse NFFT-based polar FFT
int	main (int argc, char **argv)
	test program for various parameters