mirror of
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441 lines
14 KiB
C++
441 lines
14 KiB
C++
/* iir.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2014, 2022, 2023 Warren Pratt, NR0V
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Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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The author can be reached by email at
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warren@wpratt.com
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*/
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/********************************************************************************************************
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* *
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* Bi-Quad Notch *
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* *
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********************************************************************************************************/
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#ifndef wdsp_snotch_h
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#define wdsp_snotch_h
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#include "export.h"
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namespace WDSP {
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class WDSP_API SNOTCH
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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double rate;
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double f;
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double bw;
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double a0, a1, a2, b1, b2;
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double x0, x1, x2, y1, y2;
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static SNOTCH* create_snotch (int run, int size, float* in, float* out, int rate, double f, double bw);
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static void destroy_snotch (SNOTCH *a);
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static void flush_snotch (SNOTCH *a);
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static void xsnotch (SNOTCH *a);
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static void setBuffers_snotch (SNOTCH *a, float* in, float* out);
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static void setSamplerate_snotch (SNOTCH *a, int rate);
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static void setSize_snotch (SNOTCH *a, int size);
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static void SetSNCTCSSFreq (SNOTCH *a, double freq);
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static void SetSNCTCSSRun (SNOTCH *a, int run);
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private:
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static void calc_snotch (SNOTCH *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Complex Bi-Quad Peaking *
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* *
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********************************************************************************************************/
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#ifndef wdsp_speak_h
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#define wdsp_speak_h
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#include "export.h"
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namespace WDSP {
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class RXA;
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class WDSP_API SPEAK
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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double rate;
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double f;
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double bw;
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double cbw;
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double gain;
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double fgain;
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int nstages;
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int design;
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double a0, a1, a2, b1, b2;
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double *x0, *x1, *x2, *y0, *y1, *y2;
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static SPEAK* create_speak (
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int run,
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int size,
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float* in,
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float* out,
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int rate,
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double f,
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double bw,
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double gain,
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int nstages,
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int design
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);
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static void destroy_speak (SPEAK *a);
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static void flush_speak (SPEAK *a);
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static void xspeak (SPEAK *a);
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static void setBuffers_speak (SPEAK *a, float* in, float* out);
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static void setSamplerate_speak (SPEAK *a, int rate);
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static void setSize_speak (SPEAK *a, int size);
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// RXA
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static void SetSPCWRun (RXA& rxa, int run);
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static void SetSPCWFreq (RXA& rxa, double freq);
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static void SetSPCWBandwidth (RXA& rxa, double bw);
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static void SetSPCWGain (RXA& rxa, double gain);
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static void calc_speak (SPEAK *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Complex Multiple Peaking *
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* *
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********************************************************************************************************/
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#ifndef _mpeak_h
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#define _mpeak_h
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#include "export.h"
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namespace WDSP {
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class RXA;
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class WDSP_API MPEAK
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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int rate;
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int npeaks;
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int* enable;
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double* f;
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double* bw;
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double* gain;
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int nstages;
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SPEAK** pfil;
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float* tmp;
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float* mix;
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static MPEAK* create_mpeak (
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int run,
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int size,
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float* in,
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float* out,
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int rate,
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int npeaks,
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int* enable,
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double* f,
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double* bw,
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double* gain,
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int nstages
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);
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static void destroy_mpeak (MPEAK *a);
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static void flush_mpeak (MPEAK *a);
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static void xmpeak (MPEAK *a);
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static void setBuffers_mpeak (MPEAK *a, float* in, float* out);
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static void setSamplerate_mpeak (MPEAK *a, int rate);
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static void setSize_mpeak (MPEAK *a, int size);
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// RXA
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static void SetmpeakRun (RXA& rxa, int run);
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static void SetmpeakNpeaks (RXA& rxa, int npeaks);
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static void SetmpeakFilEnable (RXA& rxa, int fil, int enable);
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static void SetmpeakFilFreq (RXA& rxa, int fil, double freq);
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static void SetmpeakFilBw (RXA& rxa, int fil, double bw);
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static void SetmpeakFilGain (RXA& rxa, int fil, double gain);
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private:
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static void calc_mpeak (MPEAK *a);
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static void decalc_mpeak (MPEAK *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Phase Rotator *
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* *
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********************************************************************************************************/
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#ifndef wdsp_phrot_h
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#define wdsp_phrot_h
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#include "export.h"
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namespace WDSP {
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class TXA;
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class WDSP_API PHROT
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{
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public:
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int reverse;
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int run;
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int size;
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float* in;
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float* out;
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int rate;
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double fc;
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int nstages;
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// normalized such that a0 = 1
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double a1, b0, b1;
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double *x0, *x1, *y0, *y1;
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static PHROT* create_phrot (int run, int size, float* in, float* out, int rate, double fc, int nstages);
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static void destroy_phrot (PHROT *a);
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static void flush_phrot (PHROT *a);
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static void xphrot (PHROT *a);
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static void setBuffers_phrot (PHROT *a, float* in, float* out);
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static void setSamplerate_phrot (PHROT *a, int rate);
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static void setSize_phrot (PHROT *a, int size);
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// TXA Properties
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static void SetPHROTRun (TXA& txa, int run);
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static void SetPHROTCorner (TXA& txa, double corner);
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static void SetPHROTNstages (TXA& txa, int nstages);
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static void SetPHROTReverse (TXA& txa, int reverse);
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private:
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static void calc_phrot (PHROT *a);
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static void decalc_phrot (PHROT *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Complex Bi-Quad Low-Pass *
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* *
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********************************************************************************************************/
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#ifndef wdsp_bqlp_h
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#define wdsp_bqlp_h
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#include "export.h"
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namespace WDSP {
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class WDSP_API BQLP
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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double rate;
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double fc;
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double Q;
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double gain;
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int nstages;
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double a0, a1, a2, b1, b2;
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double* x0, * x1, * x2, * y0, * y1, * y2;
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static BQLP* create_bqlp(int run, int size, float* in, float* out, double rate, double fc, double Q, double gain, int nstages);
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static void destroy_bqlp(BQLP *a);
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static void flush_bqlp(BQLP *a);
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static void xbqlp(BQLP *a);
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static void setBuffers_bqlp(BQLP *a, float* in, float* out);
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static void setSamplerate_bqlp(BQLP *a, int rate);
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static void setSize_bqlp(BQLP *a, int size);
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private:
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static void calc_bqlp(BQLP *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Double Bi-Quad Low-Pass *
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* *
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********************************************************************************************************/
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#ifndef wdsp_dbqlp_h
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#define wdsp_dbqlp_h
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#include "export.h"
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namespace WDSP {
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class WDSP_API DBQLP
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{
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public:
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static BQLP* create_dbqlp(int run, int size, float* in, float* out, double rate, double fc, double Q, double gain, int nstages);
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static void destroy_dbqlp(BQLP *a);
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static void flush_dbqlp(BQLP *a);
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static void xdbqlp(BQLP *a);
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static void setBuffers_dbqlp(BQLP *a, float* in, float* out);
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static void setSamplerate_dbqlp(BQLP *a, int rate);
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static void setSize_dbqlp(BQLP *a, int size);
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private:
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static void calc_dbqlp(BQLP *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Complex Bi-Quad Band-Pass *
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* *
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********************************************************************************************************/
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#ifndef wdsp_bqbp_h
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#define wdsp_bqbp_h
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#include "export.h"
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namespace WDSP {
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class WDSP_API BQBP
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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double rate;
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double f_low;
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double f_high;
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double gain;
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int nstages;
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double a0, a1, a2, b1, b2;
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double* x0, * x1, * x2, * y0, * y1, * y2;
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static BQBP* create_bqbp(int run, int size, float* in, float* out, double rate, double f_low, double f_high, double gain, int nstages);
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static void destroy_bqbp(BQBP *a);
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static void flush_bqbp(BQBP *a);
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static void xbqbp(BQBP *a);
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static void setBuffers_bqbp(BQBP *a, float* in, float* out);
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static void setSamplerate_bqbp(BQBP *a, int rate);
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static void setSize_bqbp(BQBP *a, int size);
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// Double Bi-Quad Band-Pass
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static BQBP* create_dbqbp(int run, int size, float* in, float* out, double rate, double f_low, double f_high, double gain, int nstages);
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static void destroy_dbqbp(BQBP *a);
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static void flush_dbqbp(BQBP *a);
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static void xdbqbp(BQBP *a);
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static void setBuffers_dbqbp(BQBP *a, float* in, float* out);
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static void setSamplerate_dbqbp(BQBP *a, int rate);
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static void setSize_dbqbp(BQBP *a, int size);
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private:
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static void calc_bqbp(BQBP *a);
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static void calc_dbqbp(BQBP *a);
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};
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} // namespace WDSP
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#endif
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/********************************************************************************************************
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* *
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* Double Single-Pole High-Pass *
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* *
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********************************************************************************************************/
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#ifndef wdsp_dsphp_h
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#define wdsp_dsphp_h
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#include "export.h"
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namespace WDSP {
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class WDSP_API SPHP
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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double rate;
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double fc;
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int nstages;
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double a1, b0, b1;
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double* x0, * x1, * y0, * y1;
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static SPHP* create_dsphp(int run, int size, float* in, float* out, double rate, double fc, int nstages);
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static void destroy_dsphp(SPHP *a);
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static void flush_dsphp(SPHP *a);
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static void xdsphp(SPHP *a);
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static void setBuffers_dsphp(SPHP *a, float* in, float* out);
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static void setSamplerate_dsphp(SPHP *a, int rate);
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static void setSize_dsphp(SPHP *a, int size);
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// Complex Single-Pole High-Pass
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static SPHP* create_sphp(int run, int size, float* in, float* out, double rate, double fc, int nstages);
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static void destroy_sphp(SPHP *a);
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static void flush_sphp(SPHP *a);
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static void xsphp(SPHP *a);
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static void setBuffers_sphp(SPHP *a, float* in, float* out);
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static void setSamplerate_sphp(SPHP *a, int rate);
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static void setSize_sphp(SPHP *a, int size);
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private:
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static void calc_sphp(SPHP *a);
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static void decalc_sphp(SPHP *a);
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static void calc_dsphp(SPHP *a);
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static void decalc_dsphp(SPHP *a);
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};
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} // namespace WDSP
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#endif
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