kopia lustrzana https://github.com/f4exb/sdrangel
91 wiersze
3.0 KiB
C++
91 wiersze
3.0 KiB
C++
![]() |
/* amsq.h
|
||
|
|
||
|
This file is part of a program that implements a Software-Defined Radio.
|
||
|
|
||
|
Copyright (C) 2013 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 _amsq_h
|
||
|
#define _amsq_h
|
||
|
|
||
|
#include "export.h"
|
||
|
|
||
|
namespace WDSP {
|
||
|
|
||
|
class RXA;
|
||
|
class TXA;
|
||
|
|
||
|
class WDSP_API AMSQ
|
||
|
{
|
||
|
public:
|
||
|
int run; // 0 if squelch system is OFF; 1 if it's ON
|
||
|
int size; // size of input/output buffers
|
||
|
double* in; // squelch input signal buffer
|
||
|
double* out; // squelch output signal buffer
|
||
|
double* trigger; // pointer to trigger data source
|
||
|
double* trigsig; // buffer containing trigger signal
|
||
|
double rate; // sample rate
|
||
|
double avtau; // time constant for averaging noise
|
||
|
double avm;
|
||
|
double onem_avm;
|
||
|
double avsig;
|
||
|
int state; // state machine control
|
||
|
int count;
|
||
|
double tup;
|
||
|
double tdown;
|
||
|
int ntup;
|
||
|
int ntdown;
|
||
|
double* cup;
|
||
|
double* cdown;
|
||
|
double tail_thresh;
|
||
|
double unmute_thresh;
|
||
|
double min_tail;
|
||
|
double max_tail;
|
||
|
double muted_gain;
|
||
|
|
||
|
static AMSQ* create_amsq (int run, int size, double* in, double* out, double* trigger, int rate, double avtau, double tup, double tdown, double tail_thresh, double unmute_thresh, double min_tail, double max_tail, double muted_gain);
|
||
|
static void destroy_amsq (AMSQ *a);
|
||
|
static void flush_amsq (AMSQ *a);
|
||
|
static void xamsq (AMSQ *a);
|
||
|
static void xamsqcap (AMSQ *a);
|
||
|
static void setBuffers_amsq (AMSQ *a, double* in, double* out, double* trigger);
|
||
|
static void setSamplerate_amsq (AMSQ *a, int rate);
|
||
|
static void setSize_amsq (AMSQ *a, int size);
|
||
|
// RXA Properties
|
||
|
static void SetAMSQRun (RXA& rxa, int run);
|
||
|
static void SetAMSQThreshold (RXA& rxa, double threshold);
|
||
|
static void SetAMSQMaxTail (RXA& rxa, double tail);
|
||
|
// TXA Properties
|
||
|
static void SetAMSQRun (TXA& txa, int run);
|
||
|
static void SetAMSQMutedGain (TXA& txa, double dBlevel);
|
||
|
static void SetAMSQThreshold (TXA& txa, double threshold);
|
||
|
|
||
|
private:
|
||
|
static void compute_slews(AMSQ *a);
|
||
|
static void calc_amsq(AMSQ *a);
|
||
|
static void decalc_amsq (AMSQ *a);
|
||
|
};
|
||
|
|
||
|
} // namespace WDSP
|
||
|
|
||
|
#endif
|