data structure for an NFCT (nonequispaced fast cosine transform) plan with long double precision
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#include <nfft3.h>
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NFFT_INT | N_total |
| Total number of Fourier coefficients. More...
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NFFT_INT | M_total |
| Total number of samples. More...
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long double * | f_hat |
| Fourier coefficients. More...
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long double * | f |
| Samples. More...
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void(* | mv_trafo )(void *) |
| Transform. More...
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void(* | mv_adjoint )(void *) |
| Adjoint transform. More...
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NFFT_INT | d |
| dimension, rank
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NFFT_INT * | N |
| cut-off-frequencies (kernel)
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NFFT_INT * | n |
| length of DCT-I
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NFFT_INT | n_total |
| Combined total length of FFTW transforms. More...
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long double * | sigma |
| oversampling-factor
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NFFT_INT | m |
| cut-off parameter in time-domain
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long double * | b |
| shape parameters
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NFFT_INT | K |
| Number of equispaced samples of window function. More...
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unsigned | flags |
| flags for precomputation, malloc
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unsigned | fftw_flags |
| flags for the fftw
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long double * | x |
| nodes (in time/spatial domain)
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double | MEASURE_TIME_t [3] |
| measured time for each step
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long double ** | c_phi_inv |
| precomputed data, matrix D
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long double * | psi |
| precomputed data, matrix B
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NFFT_INT | size_psi |
| only for thin B
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NFFT_INT * | psi_index_g |
| only for thin B
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NFFT_INT * | psi_index_f |
| only for thin B
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long double * | g |
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long double * | g_hat |
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long double * | g1 |
| input of fftw
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long double * | g2 |
| output of fftw
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long double * | spline_coeffs |
| input for de Boor algorithm, if B_SPLINE or SINC_2m is defined
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data structure for an NFCT (nonequispaced fast cosine transform) plan with long double precision
Definition at line 284 of file nfft3.h.
NFFT_INT nfctl_plan::N_total |
Total number of Fourier coefficients.
Definition at line 284 of file nfft3.h.
NFFT_INT nfctl_plan::M_total |
Total number of samples.
Definition at line 284 of file nfft3.h.
long double* nfctl_plan::f_hat |
Fourier coefficients.
Definition at line 284 of file nfft3.h.
long double* nfctl_plan::f |
void(* nfctl_plan::mv_trafo)(void *) |
Transform.
Definition at line 284 of file nfft3.h.
void(* nfctl_plan::mv_adjoint)(void *) |
Adjoint transform.
Definition at line 284 of file nfft3.h.
NFFT_INT nfctl_plan::n_total |
Combined total length of FFTW transforms.
Definition at line 284 of file nfft3.h.
Number of equispaced samples of window function.
Used for flag PRE_LIN_PSI.
Definition at line 284 of file nfft3.h.
The documentation for this struct was generated from the following file: