mirror of
https://github.com/f4exb/sdrangel.git
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262 lines
7.2 KiB
C++
262 lines
7.2 KiB
C++
/* snb.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2015, 2016 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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#ifndef wdsp_snba_h
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#define wdsp_snba_h
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#include "export.h"
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namespace WDSP {
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class RESAMPLE;
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class RXA;
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class WDSP_API SNBA
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{
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public:
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int run;
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double* in;
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double* out;
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int inrate;
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int internalrate;
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int bsize;
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int xsize;
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int ovrlp;
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int incr;
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int iasize;
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int iainidx;
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int iaoutidx;
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double* inaccum;
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double* xbase;
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double* xaux;
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int nsamps;
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int oasize;
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int oainidx;
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int oaoutidx;
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int init_oaoutidx;
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double* outaccum;
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int resamprun;
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int isize;
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RESAMPLE *inresamp;
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RESAMPLE *outresamp;
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double* inbuff;
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double* outbuff;
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struct _exec
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{
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int asize;
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double* a;
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double* v;
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int* detout;
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double* savex;
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double* xHout;
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int* unfixed;
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int npasses;
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} exec;
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struct _det
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{
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double k1;
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double k2;
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int b;
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int pre;
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int post;
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double* vp;
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double* vpwr;
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} sdet;
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struct _scan
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{
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double pmultmin;
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} scan;
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struct _wrk
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{
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int xHat_a1rows_max;
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int xHat_a2cols_max;
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double* xHat_r;
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double* xHat_ATAI;
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double* xHat_A1;
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double* xHat_A2;
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double* xHat_P1;
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double* xHat_P2;
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double* trI_y;
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double* trI_v;
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double* dR_z;
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double* asolve_r;
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double* asolve_z;
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} wrk;
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double out_low_cut;
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double out_high_cut;
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static SNBA* create_snba (
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int run,
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double* in,
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double* out,
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int inrate,
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int internalrate,
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int bsize,
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int ovrlp,
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int xsize,
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int asize,
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int npasses,
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double k1,
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double k2,
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int b,
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int pre,
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int post,
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double pmultmin,
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double out_low_cut,
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double out_high_cut
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);
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static void destroy_snba (SNBA *d);
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static void flush_snba (SNBA *d);
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static void xsnba (SNBA *d);
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static void setBuffers_snba (SNBA *a, double* in, double* out);
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static void setSamplerate_snba (SNBA *a, int rate);
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static void setSize_snba (SNBA *a, int size);
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// RXA
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static void SetSNBAOutputBandwidth (RXA& rxa, double flow, double fhigh);
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static void SetSNBARun (RXA& rxa, int run);
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static void SetSNBAovrlp (RXA& rxa, int ovrlp);
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static void SetSNBAasize (RXA& rxa, int size);
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static void SetSNBAnpasses (RXA& rxa, int npasses);
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static void SetSNBAk1 (RXA& rxa, double k1);
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static void SetSNBAk2 (RXA& rxa, double k2);
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static void SetSNBAbridge (RXA& rxa, int bridge);
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static void SetSNBApresamps (RXA& rxa, int presamps);
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static void SetSNBApostsamps (RXA& rxa, int postsamps);
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static void SetSNBApmultmin (RXA& rxa, double pmultmin);
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private:
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static void calc_snba (SNBA *d);
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static void decalc_snba (SNBA *d);
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static void ATAc0 (int n, int nr, double* A, double* r);
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static void multA1TA2(double* a1, double* a2, int m, int n, int q, double* c);
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static void multXKE(double* a, double* xk, int m, int q, int p, double* vout);
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static void multAv(double* a, double* v, int m, int q, double* vout);
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static void xHat(
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int xusize,
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int asize,
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double* xk,
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double* a,
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double* xout,
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double* r,
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double* ATAI,
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double* A1,
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double* A2,
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double* P1,
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double* P2,
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double* trI_y,
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double* trI_v,
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double* dR_z
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);
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static void invf(int xsize, int asize, double* a, double* x, double* v);
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static void det(SNBA *d, int asize, double* v, int* detout);
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static int scanFrame(
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int xsize,
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int pval,
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double pmultmin,
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int* det,
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int* bimp,
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int* limp,
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int* befimp,
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int* aftimp,
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int* p_opt,
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int* next
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);
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static void execFrame(SNBA *d, double* x);
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};
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class NBP;
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class NOTCHDB;
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class WDSP_API BPSNBA
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{
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public:
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int run; // run the filter
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int run_notches; // use the notches, vs straight bandpass
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int position; // position in the processing pipeline
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int size; // buffer size
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int nc; // number of filter coefficients
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int mp; // minimum phase flag
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double* in; // input buffer
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double* out; // output buffer
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int rate; // sample rate
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double* buff; // internal buffer
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NBP *bpsnba; // pointer to the notched bandpass filter, nbp
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double f_low; // low cutoff frequency
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double f_high; // high cutoff frequency
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double abs_low_freq; // lowest positive freq supported by SNB
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double abs_high_freq; // highest positive freq supported by SNG
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int wintype; // filter window type
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double gain; // filter gain
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int autoincr; // use auto increment for notch width
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int maxpb; // maximum passband segments supported
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NOTCHDB* ptraddr; // pointer to address of NOTCH DATABASE
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static BPSNBA* create_bpsnba (
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int run,
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int run_notches,
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int position,
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int size,
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int nc,
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int mp,
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double* in,
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double* out,
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int rate,
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double abs_low_freq,
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double abs_high_freq,
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double f_low,
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double f_high,
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int wintype,
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double gain,
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int autoincr,
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int maxpb,
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NOTCHDB* ptraddr
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);
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static void destroy_bpsnba (BPSNBA *a);
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static void flush_bpsnba (BPSNBA *a);
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static void setBuffers_bpsnba (BPSNBA *a, double* in, double* out);
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static void setSamplerate_bpsnba (BPSNBA *a, int rate);
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static void setSize_bpsnba (BPSNBA *a, int size);
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static void xbpsnbain (BPSNBA *a, int position);
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static void xbpsnbaout (BPSNBA *a, int position);
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static void recalc_bpsnba_filter (BPSNBA *a, int update);
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// RXA
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static void BPSNBASetNC (RXA& rxa, int nc);
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static void BPSNBASetMP (RXA& rxa, int mp);
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static void bpsnbaCheck (RXA& rxa, int mode, int notch_run);
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static void bpsnbaSet (RXA& rxa);
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private:
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static void calc_bpsnba (BPSNBA *a);
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static void decalc_bpsnba (BPSNBA *a);
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};
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} // namespace WDSP
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#endif
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