kopia lustrzana https://github.com/f4exb/sdrangel
91 wiersze
3.4 KiB
C++
91 wiersze
3.4 KiB
C++
/* bandpass.h
|
|
|
|
This file is part of a program that implements a Software-Defined Radio.
|
|
|
|
Copyright (C) 2013, 2016, 2017 Warren Pratt, NR0V
|
|
Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
|
|
|
|
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
|
|
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 for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
The author can be reached by email at
|
|
|
|
warren@wpratt.com
|
|
|
|
*/
|
|
|
|
/********************************************************************************************************
|
|
* *
|
|
* Overlap-Save Bandpass *
|
|
* *
|
|
********************************************************************************************************/
|
|
|
|
#ifndef wdsp_bandpass_h
|
|
#define wdsp_bandpass_h
|
|
|
|
#include "fftw3.h"
|
|
#include "export.h"
|
|
|
|
/********************************************************************************************************
|
|
* *
|
|
* Partitioned Overlap-Save Bandpass *
|
|
* *
|
|
********************************************************************************************************/
|
|
|
|
namespace WDSP {
|
|
|
|
class FIRCORE;
|
|
class RXA;
|
|
class TXA;
|
|
|
|
class WDSP_API BANDPASS
|
|
{
|
|
public:
|
|
int run;
|
|
int position;
|
|
int size;
|
|
int nc;
|
|
int mp;
|
|
float* in;
|
|
float* out;
|
|
float f_low;
|
|
float f_high;
|
|
float samplerate;
|
|
int wintype;
|
|
float gain;
|
|
FIRCORE *p;
|
|
|
|
static BANDPASS *create_bandpass (int run, int position, int size, int nc, int mp, float* in, float* out,
|
|
float f_low, float f_high, int samplerate, int wintype, float gain);
|
|
static void destroy_bandpass (BANDPASS *a);
|
|
static void flush_bandpass (BANDPASS *a);
|
|
static void xbandpass (BANDPASS *a, int pos);
|
|
static void setBuffers_bandpass (BANDPASS *a, float* in, float* out);
|
|
static void setSamplerate_bandpass (BANDPASS *a, int rate);
|
|
static void setSize_bandpass (BANDPASS *a, int size);
|
|
static void setGain_bandpass (BANDPASS *a, float gain, int update);
|
|
static void CalcBandpassFilter (BANDPASS *a, float f_low, float f_high, float gain);
|
|
// RXA Prototypes
|
|
static void SetBandpassFreqs (RXA& rxa, float f_low, float f_high);
|
|
static void SetBandpassNC (RXA& rxa, int nc);
|
|
static void SetBandpassMP (RXA& rxa, int mp);
|
|
// TXA Prototypes
|
|
static void SetBandpassNC (TXA& txa, int nc);
|
|
static void SetBandpassMP (TXA& txa, int mp);
|
|
};
|
|
|
|
} // namespace WDSP
|
|
|
|
#endif
|