
Public Member Functions | |
| QRealComplexFFT (const int size) | |
| constructor | |
| QRealComplexFFT () | |
| empty constructor | |
| virtual | ~QRealComplexFFT () |
| destructor | |
| virtual int | TransformToFreq (const QVector &data, QVectorC &FFT) |
| transform from the times to the frequencies | |
| virtual int | TransformFromFreq (const QVectorC &FT, QVector &spectrum) |
| transform from the frequencies to the times | |
| virtual void | SetWindowType (WindowType wt, bool coherent=false) |
| resize working table and space | |
Protected Member Functions | |
| virtual int | Transform (const QVector &data, QVector &result) |
| virtual method. Must be implemented by daughter classes. | |
Private Member Functions | |
| virtual void | Resize (int s) |
| virtual method. Must be implemented by daughter classes | |
Private Attributes | |
| gsl_fft_real_wavetable * | fWaveTable |
| set the window type. | |
| gsl_fft_halfcomplex_wavetable * | fHCWaveTable |
| gsl_fft_real_workspace * | fWork |
| QRealComplexFFT::QRealComplexFFT | ( | const int | size | ) |
constructor
| size | is the length of the real vector to be transformed |
References fWaveTable.
| int QRealComplexFFT::TransformToFreq | ( | const QVector & | data, | |
| QVectorC & | FFT | |||
| ) | [virtual] |
transform from the times to the frequencies
| result | stores the fft size of the FFT is size of |
References QVector::QVector(), Resize(), QFFT::SetForward(), QFFT::SetNormalized(), and Transform().
Referenced by BesselTransformer::BesselTransformer(), WienerFilter::Compute(), OptimumFilter::Compute(), WienerFilter::Compute_2(), WienerFilter::Compute_d(), OptimumFilter::Compute_d(), BesselTransformer::ConvolveFD(), MNoiseAvgPowerSpectrum::Do(), MComputeFFT::Do(), MCheckOffsetAndSat::Done(), WienerFilter::Filter(), OptimumFilter::Filter(), WienerFilter::Filter_d(), OptimumFilter::Filter_d(), WienerFilter::PowerSpectrum(), OptimumFilter::PowerSpectrum(), and QOBAmplitude::QOBAmplitude().
| int QRealComplexFFT::TransformFromFreq | ( | const QVectorC & | FT, | |
| QVector & | spectrum | |||
| ) | [virtual] |
transform from the frequencies to the times
| result | stores the spectra size of the FFT is size of |
References Resize(), QFFT::SetForward(), QFFT::SetNormalized(), QVectorC::SingleVector(), QVectorC::Size(), and Transform().
Referenced by BesselTransformer::BesselTransformer(), BesselTransformer::ConvolveFD(), WienerFilter::Filter(), OptimumFilter::Filter(), WienerFilter::Filter_d(), and OptimumFilter::Filter_d().
| void QRealComplexFFT::SetWindowType | ( | WindowType | wt, | |
| bool | coherent = false | |||
| ) | [virtual] |
resize working table and space
| s | is the size of the real array to be transformed |
Implements QFFT.
References QFFT::GetWindow(), and QVector::QVector().
Referenced by MNoiseAvgPowerSpectrum::Do(), Resize(), and Transform().
| int QRealComplexFFT::Transform | ( | const QVector & | data, | |
| QVector & | result | |||
| ) | [protected, virtual] |
virtual method. Must be implemented by daughter classes.
| data | references the vector of data to be transformed | |
| result | references the vector holding the result |
Implements QFFT.
References fWaveTable, and SetWindowType().
Referenced by TransformFromFreq(), and TransformToFreq().
| void QRealComplexFFT::Resize | ( | int | s | ) | [private, virtual] |
virtual method. Must be implemented by daughter classes
| s | is the size of the vector to be transformed |
Implements QFFT.
References fWaveTable, and SetWindowType().
Referenced by TransformFromFreq(), and TransformToFreq().
gsl_fft_real_wavetable* QRealComplexFFT::fWaveTable [private] |
set the window type.
| t | is the type of window applied up tp now: 0 no window 1 Hamming window |
Referenced by QRealComplexFFT(), Resize(), Transform(), and ~QRealComplexFFT().
1.5.6