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3.2.3 |
NFFT-based polar FFT and inverse on modified polar grid. More...
#include "config.h"#include <math.h>#include <stdlib.h>#include "nfft3util.h"#include "nfft3.h"#include "infft.h"Go to the source code of this file.
Functions | |
| static int | mpolar_grid (int T, int R, double *x, double *w) |
Generates the points with weights for the modified polar grid with angles and offsets. | |
| static int | mpolar_dft (fftw_complex *f_hat, int NN, fftw_complex *f, int T, int R, int m) |
| discrete mpolar FFT | |
| static int | mpolar_fft (fftw_complex *f_hat, int NN, fftw_complex *f, int T, int R, int m) |
| NFFT-based mpolar FFT. | |
| static int | inverse_mpolar_fft (fftw_complex *f, int T, int R, fftw_complex *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 R) |
| Comparison of the FFTW, mpolar FFT, and inverse mpolar FFT. | |
| int | main (int argc, char **argv) |
| test program for various parameters | |
Variables | |
| double | GLOBAL_elapsed_time |
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.
Definition in file mpolar_fft_test.c.