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WDSP: Sonar corrections and cleanup

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This commit is contained in:
f4exb 2024-07-19 08:10:54 +02:00
parent 40f7ecdaa0
commit c32116a330
14 changed files with 111 additions and 312 deletions
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11
wdsp/CMakeLists.txt
View File

@ -134,14 +134,3 @@ if (MSVC)
endif()
install(TARGETS wdsp DESTINATION ${INSTALL_LIB_DIR})
if (LINUX)
add_executable(wdsp_make_interface
make_interface.cpp
)
add_executable(wdsp_make_calculus
make_calculus.cpp
)
install(TARGETS wdsp_make_interface wdsp_make_calculus DESTINATION ${INSTALL_BIN_DIR})
endif()

6
wdsp/cfcomp.cpp
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@ -450,9 +450,9 @@ void CFCOMP::SetCFCOMPprofile (TXA& txa, int nfreqs, float* F, float* G, float *
delete[] (a->ep);
delete[] (a->gp);
delete[] (a->fp);
a->fp = new float[a->nfreqs]; // (float *) malloc0 ((a->nfreqs + 2) * sizeof (float));
a->gp = new float[a->nfreqs]; // (float *) malloc0 ((a->nfreqs + 2) * sizeof (float));
a->ep = new float[a->nfreqs]; // (float *) malloc0 ((a->nfreqs + 2) * sizeof (float));
a->fp = new float[a->nfreqs + 2]; // (float *) malloc0 ((a->nfreqs + 2) * sizeof (float));
a->gp = new float[a->nfreqs + 2]; // (float *) malloc0 ((a->nfreqs + 2) * sizeof (float));
a->ep = new float[a->nfreqs + 2]; // (float *) malloc0 ((a->nfreqs + 2) * sizeof (float));
calc_comp(a);
}

54
wdsp/cfir.cpp
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@ -46,8 +46,23 @@ void CFIR::decalc_cfir (CFIR *a)
FIRCORE::destroy_fircore (a->p);
}
CFIR* CFIR::create_cfir (int run, int size, int nc, int mp, float* in, float* out, int runrate, int cicrate,
int DD, int R, int Pairs, float cutoff, int xtype, float xbw, int wintype)
CFIR* CFIR::create_cfir (
int run,
int size,
int nc,
int mp,
float* in,
float* out,
int runrate,
int cicrate,
int DD,
int R,
int Pairs,
double cutoff,
int xtype,
double xbw,
int wintype
)
// run: 0 - no action; 1 - operate
// size: number of complex samples in an input buffer to the CFIR filter
// nc: number of filter coefficients
@ -130,7 +145,20 @@ void CFIR::setOutRate_cfir (CFIR *a, int rate)
calc_cfir (a);
}
float* CFIR::cfir_impulse (int N, int DD, int R, int Pairs, float runrate, float cicrate, float cutoff, int xtype, float xbw, int rtype, float scale, int wintype)
float* CFIR::cfir_impulse (
int N,
int DD,
int R,
int Pairs,
double runrate,
double cicrate,
double cutoff,
int xtype,
double xbw,
int rtype,
double scale,
int wintype
)
{
// N: number of impulse response samples
// DD: differential delay used in the CIC filter
@ -144,18 +172,18 @@ float* CFIR::cfir_impulse (int N, int DD, int R, int Pairs, float runrate, float
// rtype: 0 for real output, 1 for complex output
// scale: scale factor to be applied to the output
int i, j;
float tmp, local_scale, ri, mag, fn;
double tmp, local_scale, ri, mag, fn;
float* impulse;
float* A = new float[N]; // (float *) malloc0 (N * sizeof (float));
float ft = cutoff / cicrate; // normalized cutoff frequency
double ft = cutoff / cicrate; // normalized cutoff frequency
int u_samps = (N + 1) / 2; // number of unique samples, OK for odd or even N
int c_samps = (int)(cutoff / runrate * N) + (N + 1) / 2 - N / 2; // number of unique samples within bandpass, OK for odd or even N
int x_samps = (int)(xbw / runrate * N); // number of unique samples in transition region, OK for odd or even N
float offset = 0.5 - 0.5 * (float)((N + 1) / 2 - N / 2); // sample offset from center, OK for odd or even N
float* xistion = new float[x_samps + 1]; // (float *) malloc0 ((x_samps + 1) * sizeof (float));
float delta = PI / (float)x_samps;
float L = cicrate / runrate;
float phs = 0.0;
double offset = 0.5 - 0.5 * (float)((N + 1) / 2 - N / 2); // sample offset from center, OK for odd or even N
double* xistion = new double[x_samps + 1]; // (float *) malloc0 ((x_samps + 1) * sizeof (float));
double delta = PI / (float)x_samps;
double L = cicrate / runrate;
double phs = 0.0;
for (i = 0; i <= x_samps; i++)
{
xistion[i] = 0.5 * (cos (phs) + 1.0);
@ -171,7 +199,8 @@ float* CFIR::cfir_impulse (int N, int DD, int R, int Pairs, float runrate, float
fn = ri / (L * (float)N);
if (fn <= ft)
{
if (fn == 0.0) tmp = 1.0;
if (fn == 0.0)
tmp = 1.0;
else if ((tmp = DD * R * sin (PI * fn / R) / sin (PI * DD * fn)) < 0.0)
tmp = -tmp;
mag = pow (tmp, Pairs) * local_scale;
@ -225,7 +254,8 @@ float* CFIR::cfir_impulse (int N, int DD, int R, int Pairs, float runrate, float
A[i] = A[u_samps - j];
impulse = FIR::fir_fsamp (N, A, rtype, 1.0, wintype);
// print_impulse ("cfirImpulse.txt", N, impulse, 1, 0);
delete[] (A);
delete[] A;
delete[] xistion;
return impulse;
}

20
wdsp/cfir.hpp
View File

@ -49,10 +49,10 @@ public:
int DD;
int R;
int Pairs;
float cutoff;
float scale;
double cutoff;
double scale;
int xtype;
float xbw;
double xbw;
int wintype;
FIRCORE *p;
@ -68,9 +68,9 @@ public:
int DD,
int R,
int Pairs,
float cutoff,
double cutoff,
int xtype,
float xbw,
double xbw,
int wintype
);
static void destroy_cfir (CFIR *a);
@ -85,13 +85,13 @@ public:
int DD,
int R,
int Pairs,
float runrate,
float cicrate,
float cutoff,
double runrate,
double cicrate,
double cutoff,
int xtype,
float xbw,
double xbw,
int rtype,
float scale,
double scale,
int wintype
);
// TXA Properties

90
wdsp/channel.hpp
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@ -1,90 +0,0 @@
/* channel.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 wdsp_channel_h
#define wdsp_channel_h
#include <QThread>
#include "export.h"
class WDSP_API Channel
{
public:
int type;
bool run; // thread running
int in_rate; // input samplerate
int out_rate; // output samplerate
int in_size; // input buffsize (complex samples) in a fexchange() operation
int dsp_rate; // sample rate for mainstream dsp processing
int dsp_size; // number complex samples processed per buffer in mainstream dsp processing
int dsp_insize; // size (complex samples) of the output of the r1 (input) buffer
int dsp_outsize; // size (complex samples) of the input of the r2 (output) buffer
int out_size; // output buffsize (complex samples) in a fexchange() operation
int state; // 0 for channel OFF; 1 for channel ON
float tdelayup;
float tslewup;
float tdelaydown;
float tslewdown;
int bfo; // 'block_for_output', block fexchange until output is available
volatile long flushflag;
QThread channelThread;
long upslew;
// struct //io buffers
// {
// IOB pc, pd, pe, pf; // copies for console calls, dsp, exchange, and flush thread
// volatile long ch_upslew;
// } iob;
static void create_channel (
int channel,
int in_size,
int dsp_size,
int input_samplerate,
int dsp_rate,
int output_samplerate,
int type,
int state,
float tdelayup,
float tslewup,
float tdelaydown,
float tslewdown,
int bfo
);
static void destroy_channel (int channel);
static void flush_channel (int channel);
// static void set_type (int channel, int type);
// static void SetInputBuffsize (int channel, int in_size);
// static void SetDSPBuffsize (int channel, int dsp_size);
// static void SetInputSamplerate (int channel, int samplerate);
// static void SetDSPSamplerate (int channel, int samplerate);
// static void SetOutputSamplerate (int channel, int samplerate);
// static void SetAllRates (int channel, int in_rate, int dsp_rate, int out_rate);
// static int SetChannelState (int channel, int state, int dmode);
};
#endif

2
wdsp/emnr.cpp
View File

@ -233,7 +233,7 @@ void EMNR::interpM (double* res, double x, int nvals, double* xvals, double* yva
int idx = 0;
double xllow, xlhigh, frac;
while (x >= xvals[idx])
while ((x >= xvals[idx]) && (idx < nvals - 1))
idx++;
xllow = log10 (xvals[idx - 1]);

61
wdsp/eq.cpp
View File

@ -44,46 +44,60 @@ int EQP::fEQcompare (const void * a, const void * b)
return 1;
}
float* EQP::eq_impulse (int N, int nfreqs, float* F, float* G, float samplerate, float scale, int ctfmode, int wintype)
float* EQP::eq_impulse (int N, int nfreqs, float* F, float* G, double samplerate, double scale, int ctfmode, int wintype)
{
float* fp = new float[nfreqs + 2]; // (float *) malloc0 ((nfreqs + 2) * sizeof (float));
float* gp = new float[nfreqs + 2]; // (float *) malloc0 ((nfreqs + 2) * sizeof (float));
float* A = new float[N / 2 + 1]; // (float *) malloc0 ((N / 2 + 1) * sizeof (float));
float* sary = new float[2 * nfreqs]; // (float *) malloc0 (2 * nfreqs * sizeof (float));
float gpreamp, f, frac;
double gpreamp, f, frac;
float* impulse;
int i, j, mid;
fp[0] = 0.0;
fp[nfreqs + 1] = 1.0;
gpreamp = G[0];
for (i = 1; i <= nfreqs; i++)
{
fp[i] = 2.0 * F[i] / samplerate;
if (fp[i] < 0.0) fp[i] = 0.0;
if (fp[i] > 1.0) fp[i] = 1.0;
if (fp[i] < 0.0)
fp[i] = 0.0;
if (fp[i] > 1.0)
fp[i] = 1.0;
gp[i] = G[i];
}
for (i = 1, j = 0; i <= nfreqs; i++, j+=2)
{
sary[j + 0] = fp[i];
sary[j + 1] = gp[i];
}
qsort (sary, nfreqs, 2 * sizeof (float), fEQcompare);
for (i = 1, j = 0; i <= nfreqs; i++, j+=2)
{
fp[i] = sary[j + 0];
gp[i] = sary[j + 1];
}
gp[0] = gp[1];
gp[nfreqs + 1] = gp[nfreqs];
mid = N / 2;
j = 0;
if (N & 1)
{
for (i = 0; i <= mid; i++)
{
f = (float)i / (float)mid;
while (f > fp[j + 1]) j++;
f = (double)i / (double)mid;
while ((f > fp[j + 1]) && (j < nfreqs))
j++;
frac = (f - fp[j]) / (fp[j + 1] - fp[j]);
A[i] = pow (10.0, 0.05 * (frac * gp[j + 1] + (1.0 - frac) * gp[j] + gpreamp)) * scale;
}
@ -92,36 +106,44 @@ float* EQP::eq_impulse (int N, int nfreqs, float* F, float* G, float samplerate,
{
for (i = 0; i < mid; i++)
{
f = ((float)i + 0.5) / (float)mid;
while (f > fp[j + 1]) j++;
f = ((double)i + 0.5) / (double)mid;
while ((f > fp[j + 1]) && (j < nfreqs))
j++;
frac = (f - fp[j]) / (fp[j + 1] - fp[j]);
A[i] = pow (10.0, 0.05 * (frac * gp[j + 1] + (1.0 - frac) * gp[j] + gpreamp)) * scale;
}
}
if (ctfmode == 0)
{
int k, low, high;
float lowmag, highmag, flow4, fhigh4;
double lowmag, highmag, flow4, fhigh4;
if (N & 1)
{
low = (int)(fp[1] * mid);
high = (int)(fp[nfreqs] * mid + 0.5);
lowmag = A[low];
highmag = A[high];
flow4 = pow((float)low / (float)mid, 4.0);
fhigh4 = pow((float)high / (float)mid, 4.0);
flow4 = pow((double)low / (double)mid, 4.0);
fhigh4 = pow((double)high / (double)mid, 4.0);
k = low;
while (--k >= 0)
{
f = (float)k / (float)mid;
f = (double)k / (double)mid;
lowmag *= (f * f * f * f) / flow4;
if (lowmag < 1.0e-20) lowmag = 1.0e-20;
A[k] = lowmag;
}
k = high;
while (++k <= mid)
{
f = (float)k / (float)mid;
f = (double)k / (double)mid;
highmag *= fhigh4 / (f * f * f * f);
if (highmag < 1.0e-20) highmag = 1.0e-20;
A[k] = highmag;
@ -133,30 +155,35 @@ float* EQP::eq_impulse (int N, int nfreqs, float* F, float* G, float samplerate,
high = (int)(fp[nfreqs] * mid - 0.5);
lowmag = A[low];
highmag = A[high];
flow4 = pow((float)low / (float)mid, 4.0);
fhigh4 = pow((float)high / (float)mid, 4.0);
flow4 = pow((double)low / (double)mid, 4.0);
fhigh4 = pow((double)high / (double)mid, 4.0);
k = low;
while (--k >= 0)
{
f = (float)k / (float)mid;
f = (double)k / (double)mid;
lowmag *= (f * f * f * f) / flow4;
if (lowmag < 1.0e-20) lowmag = 1.0e-20;
A[k] = lowmag;
}
k = high;
while (++k < mid)
{
f = (float)k / (float)mid;
f = (double)k / (double)mid;
highmag *= fhigh4 / (f * f * f * f);
if (highmag < 1.0e-20) highmag = 1.0e-20;
A[k] = highmag;
}
}
}
if (N & 1)
impulse = FIR::fir_fsamp_odd(N, A, 1, 1.0, wintype);
else
impulse = FIR::fir_fsamp(N, A, 1, 1.0, wintype);
// print_impulse("eq.txt", N, impulse, 1, 0);
delete[] (sary);
delete[] (A);

4
wdsp/eq.hpp
View File

@ -56,7 +56,7 @@ public:
float* G;
int ctfmode;
int wintype;
float samplerate;
double samplerate;
FIRCORE *p;
static EQP* create_eqp (
@ -73,7 +73,7 @@ public:
int wintype,
int samplerate
);
static float* eq_impulse (int N, int nfreqs, float* F, float* G, float samplerate, float scale, int ctfmode, int wintype);
static float* eq_impulse (int N, int nfreqs, float* F, float* G, double samplerate, double scale, int ctfmode, int wintype);
static void destroy_eqp (EQP *a);
static void flush_eqp (EQP *a);
static void xeqp (EQP *a);

4
wdsp/fir.cpp
View File

@ -318,8 +318,8 @@ float *FIR::fir_read (int N, const char *filename, int rtype, float scale)
void FIR::analytic (int N, float* in, float* out)
{
int i;
float inv_N = 1.0 / (float) N;
float two_inv_N = 2.0 * inv_N;
double inv_N = 1.0 / (double) N;
double two_inv_N = 2.0 * inv_N;
float* x = new float[N * 2]; // (float *) malloc0 (N * sizeof (complex));
fftwf_plan pfor = fftwf_plan_dft_1d (
N,

63
wdsp/make_calculus.cpp
View File

@ -1,63 +0,0 @@
/*
* make_calculus
*
* This program reads the contents of the binary WDSP file "calculus"
* and dumps the data as two arrays of floating-point numbers
*
* The output is intended to be part of the file "calculus.c" which
* initializes these arrays (static data) for use with "memcpy"
* in emnr.c.
*
* Should the WDSP file "calculus" be changed, "calculus.c" should
* be re-generated using this program.
*
* return values of main()
*
* 0 all OK
* -1 sizeof(float) is not 8
* -2 error opening file "calculus"
* -3 read error
*/
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
int main() {
int fd;
int i,j;
float d;
if (sizeof(float) != 8) {
printf("Data type DOUBLE is not 8-byte. Please check!\n");
return -1;
}
fd=open ("calculus", O_RDONLY);
if (fd < 0) {
printf("Could not open file 'calculus'\n");
return -2;
}
for (j=0; j<2; j++) {
switch (j) {
case 0:
printf("float GG[241*241]={\n");
break;
case 1:
printf("float GGS[241*241]={\n");
break;
}
for (i=0; i< 241*241; i++) {
if (read(fd, &d, 8) != 8) {
printf("READ ERROR\n");
return -3;
}
if (i == 241*241 -1) {
printf("%30.25f};\n", d);
} else {
printf("%30.25f,\n", d);
}
}
return 0;
}
}

101
wdsp/make_interface.cpp
View File

@ -1,101 +0,0 @@
/*
The purpose of this file is to extract interfaces from the WDSP source code.
The interfaces have the following form:
PORT blabla
firstline
secondline
{
where there may be an arbitrary number of lines between the line
containing "PORT" and the line starting with "{". This has to be
converted to
extern blabla firstline
secondline;
That is, the first line is prepended by "extern", and the last line is closed
with a semicolon. Comments starting with '//' are omitted, and lines starting
with '//' are ignored.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
void trimm(char *line, size_t maxlen);
int main(int argc, char **argv)
{
FILE *infile;
int i;
int first_in_file;
int first_in_decl;
char line[1000];
size_t linesize=999;
char *buffer=line;
for (i=1; i<argc; i++) {
infile=fopen(argv[i],"r");
if (infile == NULL) continue;
first_in_file=1;
for (;;) {
if (getline(&buffer, &linesize, infile) < 0) break;
trimm(line, linesize);
if (strncmp(line,"PORT", 4) != 0) continue;
// found an interface
if (first_in_file) {
printf("\n//\n// Interfaces from %s\n//\n\n", argv[i]);
first_in_file=0;
}
if (strlen(line) >4) {
printf("extern %s ", line+4);
} else {
printf("extern ");
}
first_in_decl=1;
for (;;) {
if (getline(&buffer, &linesize, infile) < 0) {
fprintf(stderr,"! Found a PORT but found EOF while scanning interface.\n");
return 8;
}
trimm(line, linesize);
if (line[0] == 0) continue;
if (line[0] == '{') {
printf(";\n");
break;
} else {
if (first_in_decl) {
printf("%s", line);
first_in_decl=0;
} else {
printf("\n%s", line);
}
}
}
}
fclose(infile);
}
return 0;
}
void trimm(char *line, size_t maxlen) {
int len;
//
// Remove comments starting with '//'
//
len=strnlen(line,maxlen);
for (int i=0; i< len-1; i++) {
if (line[i] == '/' && line[i+1] == '/') line[i]=0;
}
//
// Remove trailing white space and newlines
//
len=strnlen(line,maxlen);
line[len--]=0;
while (len >= 0 && (line[len] == ' ' || line[len] == '\t' || line[len]== '\n')) line[len--]=0;
}

1
wdsp/nbp.cpp
View File

@ -132,6 +132,7 @@ int NBP::make_nbp (
else
{
nbp = 0;
delete[] del;
return nbp;
}
*havnotch = 0;

3
wdsp/resample.cpp
View File

@ -60,6 +60,9 @@ void RESAMPLE::calc_resample (RESAMPLE *a)
a->L = a->out_rate / x;
a->M = a->in_rate / x;
a->L <= 0 ? 1 : a->L;
a->M <= 0 ? 1 : a->M;
if (a->in_rate < a->out_rate)
min_rate = a->in_rate;
else

3
wdsp/resamplef.cpp
View File

@ -64,6 +64,9 @@ RESAMPLEF* RESAMPLEF::create_resampleF ( int run, int size, float* in, float* ou
a->L = out_rate / x;
a->M = in_rate / x;
a->L <= 0 ? 1 : a->L;
a->M <= 0 ? 1 : a->M;
if (in_rate < out_rate)
min_rate = in_rate;
else