mirror of https://github.com/f4exb/sdrangel.git
61 lines
3.0 KiB
C++
61 lines
3.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2018-2020, 2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
// //
|
|
// This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon //
|
|
// reformatted and adapted to Qt and SDRangel context //
|
|
// //
|
|
// Caution: this is intentionally not thread safe and one such engine should //
|
|
// be allocated by thread. Due to optimization of FFT buffers these buffers are //
|
|
// not shared among threads. //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef FFT_H
|
|
#define FFT_H
|
|
|
|
#include <QMutex>
|
|
#include <vector>
|
|
#include <complex>
|
|
|
|
#include "export.h"
|
|
|
|
namespace FT8
|
|
{
|
|
class FFTBuffers;
|
|
|
|
class FT8_API FFTEngine
|
|
{
|
|
public:
|
|
std::vector<std::complex<float>> one_fft(const std::vector<float> &samples, int i0, int block);
|
|
std::vector<float> one_ifft(const std::vector<std::complex<float>> &bins);
|
|
typedef std::vector<std::vector<std::complex<float>>> ffts_t;
|
|
ffts_t ffts(const std::vector<float> &samples, int i0, int block);
|
|
std::vector<std::complex<float>> one_fft_c(const std::vector<float> &samples, int i0, int block);
|
|
std::vector<std::complex<float>> one_fft_cc(const std::vector<std::complex<float>> &samples, int i0, int block);
|
|
std::vector<std::complex<float>> one_ifft_cc(const std::vector<std::complex<float>> &bins);
|
|
std::vector<float> hilbert_shift(const std::vector<float> &x, float hz0, float hz1, int rate);
|
|
|
|
FFTEngine();
|
|
~FFTEngine();
|
|
|
|
private:
|
|
std::vector<std::complex<float>> analytic(const std::vector<float> &x);
|
|
FFTBuffers *m_fftBuffers;
|
|
}; // FFTEngine
|
|
|
|
} // namespace FT8
|
|
|
|
#endif
|