177 lines
4.4 KiB
C
177 lines
4.4 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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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 _snba_h
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#define _snba_h
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#include "resample.h"
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typedef struct _snba
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{
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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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} snba, *SNBA;
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extern SNBA create_snba (int run, double* in, double* out, int inrate, int internalrate, int bsize, int ovrlp, int xsize,
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int asize, int npasses, double k1, double k2, int b, int pre, int post, double pmultmin, double out_low_cut, double out_high_cut);
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extern void destroy_snba (SNBA d);
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extern void flush_snba (SNBA d);
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extern void xsnba (SNBA d);
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extern void setBuffers_snba (SNBA a, double* in, double* out);
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extern void setSamplerate_snba (SNBA a, int rate);
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extern void setSize_snba (SNBA a, int size);
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__declspec (dllexport) void SetRXASNBAOutputBandwidth (int channel, double flow, double fhigh);
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typedef struct _bpsnba
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{
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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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} bpsnba, *BPSNBA;
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extern void calc_bpsnba (BPSNBA a);
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extern void decalc_bpsnba (BPSNBA a);
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extern BPSNBA create_bpsnba (int run, int run_notches, int position, int size, int nc, int mp, double* in, double* out, int rate,
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double abs_low_freq, double abs_high_freq, double f_low, double f_high, int wintype, double gain, int autoincr,
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int maxpb, NOTCHDB* ptraddr);
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extern void destroy_bpsnba (BPSNBA a);
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extern void flush_bpsnba (BPSNBA a);
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extern void setBuffers_bpsnba (BPSNBA a, double* in, double* out);
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extern void setSamplerate_bpsnba (BPSNBA a, int rate);
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extern void setSize_bpsnba (BPSNBA a, int size);
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extern void xbpsnbain (BPSNBA a, int position);
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extern void xbpsnbaout (BPSNBA a, int position);
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extern void recalc_bpsnba_filter (BPSNBA a, int update);
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__declspec (dllexport) void RXABPSNBASetNC (int channel, int nc);
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__declspec (dllexport) void RXABPSNBASetMP (int channel, int mp);
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#endif
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