kopia lustrzana https://github.com/f4exb/sdrangel
110 wiersze
3.2 KiB
C++
110 wiersze
3.2 KiB
C++
/* snb.h
|
|
|
|
This file is part of a program that implements a Software-Defined Radio.
|
|
|
|
Copyright (C) 2015, 2016 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
|
|
|
|
*/
|
|
|
|
#ifndef wdsp_bpsnba_h
|
|
#define wdsp_bpsnba_h
|
|
|
|
#include <vector>
|
|
|
|
#include "export.h"
|
|
namespace WDSP{
|
|
|
|
class NOTCHDB;
|
|
class NBP;
|
|
|
|
class WDSP_API BPSNBA
|
|
{
|
|
public:
|
|
int run; // run the filter
|
|
int run_notches; // use the notches, vs straight bandpass
|
|
int position; // position in the processing pipeline
|
|
int size; // buffer size
|
|
int nc; // number of filter coefficients
|
|
int mp; // minimum phase flag
|
|
float* in; // input buffer
|
|
float* out; // output buffer
|
|
int rate; // sample rate
|
|
double abs_low_freq; // lowest positive freq supported by SNB
|
|
double abs_high_freq; // highest positive freq supported by SNG
|
|
double f_low; // low cutoff frequency
|
|
double f_high; // high cutoff frequency
|
|
std::vector<float> buff; // internal buffer
|
|
int wintype; // filter window type
|
|
double gain; // filter gain
|
|
int autoincr; // use auto increment for notch width
|
|
int maxpb; // maximum passband segments supported
|
|
NOTCHDB* notchdb; // pointer to address of NOTCH DATABASE
|
|
NBP *bpsnba; // pointer to the notched bandpass filter, nbp
|
|
|
|
BPSNBA(
|
|
int run,
|
|
int run_notches,
|
|
int position,
|
|
int size,
|
|
int nc,
|
|
int mp,
|
|
float* in,
|
|
float* out,
|
|
int rate,
|
|
double abs_low_freq,
|
|
double abs_high_freq,
|
|
double f_low,
|
|
double f_high,
|
|
int wintype,
|
|
double gain,
|
|
int autoincr,
|
|
int maxpb,
|
|
NOTCHDB* notchdb
|
|
);
|
|
BPSNBA(const BPSNBA&) = delete;
|
|
BPSNBA& operator=(BPSNBA& other) = delete;
|
|
~BPSNBA();
|
|
|
|
void flush();
|
|
void setBuffers(float* in, float* out);
|
|
void setSamplerate(int rate);
|
|
void setSize(int size);
|
|
void exec_in(int position);
|
|
void exec_out(int position);
|
|
void recalc_bpsnba_filter(int update);
|
|
// Propertoes
|
|
void SetNC(int nc);
|
|
void SetMP(int mp);
|
|
|
|
private:
|
|
void calc();
|
|
void decalc();
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
} // namespace
|