mpolar_fft_test.c File Reference

NFFT-based polar FFT and inverse on modified polar grid. More...

#include <math.h>
#include <stdlib.h>
#include <complex.h>
#include "nfft3mp.h"

Go to the source code of this file.

Functions
static int	mpolar_grid (int T, int S, NFFT_R *x, NFFT_R *w)
	Generates the points with weights for the modified polar grid with angles and offsets. More...
static int	mpolar_dft (NFFT_C *f_hat, int NN, NFFT_C *f, int T, int S, int m)
	discrete mpolar FFT
static int	mpolar_fft (NFFT_C *f_hat, int NN, NFFT_C *f, int T, int S, int m)
	NFFT-based mpolar FFT.
static int	inverse_mpolar_fft (NFFT_C *f, int T, int S, NFFT_C *f_hat, int NN, int max_i, int m)
	inverse NFFT-based mpolar FFT
static int	comparison_fft (FILE *fp, int N, int T, int S)
	Comparison of the FFTW, mpolar FFT, and inverse mpolar FFT.
int	main (int argc, char **argv)
	test program for various parameters

Variables
NFFT_R	GLOBAL_elapsed_time

Detailed Description

NFFT-based polar FFT and inverse on modified polar grid.

Computes the NFFT-based polar FFT and its inverse on a modified polar grid for various parameters.

Author

Markus Fenn

Date

2006

Definition in file mpolar_fft_test.c.