fourier.cpp File Reference

#include "math-precomp.h"
#include <mrpt/core/bits_math.h>
#include <mrpt/math/fourier.h>
#include <Eigen/Dense>
#include <algorithm>
#include <cmath>

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Namespaces
	mrpt::math
	This base provides a set of functions for maths stuff.

Typedefs
using	mrpt::math::FFT_TYPE = float
	Copyright(C) 1997 Takuya OOURA (email: ooura.nosp@m.@mmm.nosp@m..t.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp). More...

Functions
static void	mrpt::math::four1 (float data[], unsigned long nn, int isign)
static void	mrpt::math::realft (float data[], unsigned long n)
static void	mrpt::math::makewt (int nw, int *ip, FFT_TYPE *w)
static void	mrpt::math::bitrv2 (int n, int *ip, FFT_TYPE *a)
	Copyright(C) 1997 Takuya OOURA (email: ooura.nosp@m.@mmm.nosp@m..t.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp). More...
static void	mrpt::math::cftbsub (int n, FFT_TYPE *a, FFT_TYPE *w)
static void	mrpt::math::cftfsub (int n, FFT_TYPE *a, FFT_TYPE *w)
static void	mrpt::math::rftfsub (int n, FFT_TYPE *a, int nc, FFT_TYPE *c)
static void	mrpt::math::rftbsub (int n, FFT_TYPE *a, int nc, FFT_TYPE *c)
static void	mrpt::math::makect (int nc, int *ip, FFT_TYPE *c)
	Copyright(C) 1997 Takuya OOURA (email: ooura.nosp@m.@mmm.nosp@m..t.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp). More...
static void	mrpt::math::cdft (int n, int isgn, FFT_TYPE *a, int *ip, FFT_TYPE *w)
	Copyright(C) 1997 Takuya OOURA (email: ooura.nosp@m.@mmm.nosp@m..t.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp). More...
static void	mrpt::math::rdft (int n, int isgn, FFT_TYPE *a, int *ip, FFT_TYPE *w)
static void	mrpt::math::rdft2d (int n1, int n2, int isgn, FFT_TYPE **a, FFT_TYPE *t, int *ip, FFT_TYPE *w)
	Copyright(C) 1997 Takuya OOURA (email: ooura.nosp@m.@mmm.nosp@m..t.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp). More...
static void	mrpt::math::cdft2d (int n1, int n2, int isgn, FFT_TYPE **a, FFT_TYPE *t, int *ip, FFT_TYPE *w)
	Copyright(C) 1997 Takuya OOURA (email: ooura.nosp@m.@mmm.nosp@m..t.u-.nosp@m.toky.nosp@m.o.ac..nosp@m.jp). More...
static void	myGeneralDFT (int sign, const CMatrixFloat &in_real, const CMatrixFloat &in_imag, CMatrixFloat &out_real, CMatrixFloat &out_imag)

Function Documentation

myGeneralDFT()

static void myGeneralDFT ( int  sign, const CMatrixFloat &  in_real, const CMatrixFloat &  in_imag, CMatrixFloat &  out_real, CMatrixFloat &  out_imag  )

static

Definition at line 1173 of file fourier.cpp.

References ASSERT_, mrpt::math::CMatrixDynamic< T >::cols(), M_2PI, R, mrpt::math::CMatrixDynamic< T >::rows(), mrpt::math::CMatrixDynamic< T >::setSize(), and mrpt::sign().

Referenced by mrpt::math::dft2_complex(), and mrpt::math::idft2_complex().

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