#include <ButterflyFFT.h>
List of all members.
Detailed Description
this class implements the fast fourier transformation and inverse fast fourier transformation functions.
Constructor & Destructor Documentation
| TButterflyFFT::TButterflyFFT |
( |
) |
|
Creates the fourier transformater
| TButterflyFFT::~TButterflyFFT |
( |
) |
[virtual] |
Destroys the fourier transformater
Member Function Documentation
| void TButterflyFFT::fft |
( |
TComplex * |
axIn, |
|
|
Int |
iN |
|
) |
| |
Complex fast fourier transformation. This method takes numbers of the complex numberspace, transforms them, and returns the result again in the complex number space. To feed it with real numbers, just set the real components of the complex numbers only.
- Parameters:
-
| axIn | : Array of complex numbers as input. The output will be written into the same array |
| iN | : Number of samples |
| void TButterflyFFT::fft2D |
( |
TComplex ** |
axIn, |
|
|
Int |
iWidth, |
|
|
Int |
iHeight |
|
) |
| |
This method implements the 2D fourier transformation
- Parameters:
-
| axIn | : In-out parameter, containing the matriy of data |
| iWidth | : Width of the matrix (number of columns); |
| iHeight | : Height of the matrix (number of rows) |
- Note:
- The data matrix is interpreted as a 2d array. The method accesses the data as axIn[y][x], where as y is the row and x is the column ID.
| void TButterflyFFT::ifft |
( |
TComplex * |
axIn, |
|
|
Int |
iN |
|
) |
| |
Complex inverse fast fourier transformation
- Parameters:
-
| axIn | : Array of complex numbers as input. The output will be written into the same array |
| iN | : Number of samples |
| void TButterflyFFT::ifft2D |
( |
TComplex ** |
axIn, |
|
|
Int |
iWidth, |
|
|
Int |
iHeight |
|
) |
| |
This method implements the 2D inverse fourier transformation
- Parameters:
-
| axIn | : In-out parameter, containing the matriy of data |
| iWidth | : Width of the matrix (number of columns); |
| iHeight | : Height of the matrix (number of rows) |
- Note:
- The data matrix is interpreted as a 2d array. The method accesses the data as axIn[y][x], where as y is the row and x is the column ID.
The documentation for this class was generated from the following files:
