Brumi-2021 52c3760e90
Adding Wefax demodulation mode inside Audio App (#2539)
* Adding_new_WFAX_GUI_mode_Audio_App

* Wefax_APT_demodulation_structure

* Solving REC Apt signal.wav from WFAX

* clang format issues

* correcting comments
2025-03-05 11:27:18 +08:00

58 lines
1.5 KiB
C++

/*
* Copyright (C) 2020 Belousov Oleg
*
* This file is part of PortaPack.
*
* 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; either version 2, 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __DSP_HILBERT_H__
#define __DSP_HILBERT_H__
#include "dsp_sos.hpp"
#include "dsp_types.hpp"
namespace dsp {
class HilbertTransform {
public:
HilbertTransform();
void execute(float in, float& out_i, float& out_q);
private:
uint8_t n = 0;
SOSFilter<5> sos_input = {};
SOSFilter<5> sos_i = {};
SOSFilter<5> sos_q = {};
};
class Real_to_Complex {
public:
Real_to_Complex(); // Additional initialization
void execute(float in, float& out_mag_sq_lpf);
private:
uint8_t n = 0;
SOSFilter<5> sos_input = {};
SOSFilter<5> sos_i = {};
SOSFilter<5> sos_q = {};
SOSFilter<5> sos_mag_sq = {};
};
} /* namespace dsp */
#endif /*__DSP_HILBERT_H__*/