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Fix fixed point builds of spandsp, and improve logging of modem performance during tests

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This commit is contained in:
Steve Underwood 2012-08-05 22:20:39 +08:00
parent 72566f6a3f
commit 04e93f4c0b
11 changed files with 197 additions and 207 deletions
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6
libs/spandsp/src/spandsp/v17rx.h
View File

@ -209,6 +209,12 @@ working only on the most optimal lines, and being widely usable across most phon
TCM absolutely transformed the phone line modem business.
*/
#if defined(SPANDSP_USE_FIXED_POINT)
#define V17_CONSTELLATION_SCALING_FACTOR 1024.0
#else
#define V17_CONSTELLATION_SCALING_FACTOR 1.0
#endif
/*!
V.17 modem receive side descriptor. This defines the working state for a
single instance of a V.17 modem receiver.

6
libs/spandsp/src/spandsp/v22bis.h
View File

@ -48,6 +48,12 @@ or 1200bps if one or both ends to not acknowledge that 2400bps is OK.
#if !defined(_SPANDSP_V22BIS_H_)
#define _SPANDSP_V22BIS_H_
#if defined(SPANDSP_USE_FIXED_POINT)
#define V22BIS_CONSTELLATION_SCALING_FACTOR 1024.0
#else
#define V22BIS_CONSTELLATION_SCALING_FACTOR 1.0
#endif
enum
{
V22BIS_GUARD_TONE_NONE,

6
libs/spandsp/src/spandsp/v27ter_rx.h
View File

@ -44,6 +44,12 @@ at the start of transmission, which makes the design of a V.27ter receiver relat
straightforward.
*/
#if defined(SPANDSP_USE_FIXED_POINT)
#define V27TER_CONSTELLATION_SCALING_FACTOR 1024.0
#else
#define V27TER_CONSTELLATION_SCALING_FACTOR 1.0
#endif
/*!
V.27ter modem receive side descriptor. This defines the working state for a
single instance of a V.27ter modem receiver.

6
libs/spandsp/src/spandsp/v29rx.h
View File

@ -118,6 +118,12 @@ scrambler register) cannot be trusted for the test. The receive modem,
therefore, only tests that bits starting at bit 24 are really ones.
*/
#if defined(SPANDSP_USE_FIXED_POINT)
#define V29_CONSTELLATION_SCALING_FACTOR 4096.0
#else
#define V29_CONSTELLATION_SCALING_FACTOR 1.0
#endif
#if defined(SPANDSP_USE_FIXED_POINT)
typedef void (*qam_report_handler_t)(void *user_data, const complexi16_t *constel, const complexi16_t *target, int symbol);
#else

3
libs/spandsp/src/v17rx.c
View File

@ -202,10 +202,11 @@ SPAN_DECLARE(int) v17_rx_equalizer_state(v17_rx_state_t *s, complexf_t **coeffs)
{
#if defined(SPANDSP_USE_FIXED_POINT)
*coeffs = NULL;
return 0;
#else
*coeffs = s->eq_coeff;
#endif
return V17_EQUALIZER_LEN;
#endif
}
/*- End of function --------------------------------------------------------*/

32
libs/spandsp/tests/modem_monitor.cpp
View File

@ -52,10 +52,10 @@
#define SYMBOL_TRACKER_POINTS 12000
#define CARRIER_TRACKER_POINTS 12000
#define FP_FACTOR 4096
struct qam_monitor_s
{
float constel_scaling;
Fl_Double_Window *w;
Fl_Group *c_const;
Fl_Group *c_right;
@ -189,14 +189,14 @@ int qam_monitor_update_equalizer(qam_monitor_t *s, const complexf_t *coeffs, int
for (i = 0; i < len; i++)
{
s->eq_re_plot[2*i] = (i - len/2)/2.0;
s->eq_re_plot[2*i + 1] = coeffs[i].re;
s->eq_re_plot[2*i + 1] = coeffs[i].re*s->constel_scaling;
if (min > coeffs[i].re)
min = coeffs[i].re;
if (max < coeffs[i].re)
max = coeffs[i].re;
s->eq_im_plot[2*i] = (i - len/2)/2.0;
s->eq_im_plot[2*i + 1] = coeffs[i].im;
s->eq_im_plot[2*i + 1] = coeffs[i].im*s->constel_scaling;
if (min > coeffs[i].im)
min = coeffs[i].im;
if (max < coeffs[i].im)
@ -235,22 +235,22 @@ int qam_monitor_update_int_equalizer(qam_monitor_t *s, const complexi16_t *coeff
max = coeffs[i].im;
for (i = 0; i < len; i++)
{
s->eq_re_plot[2*i] = (i - len/2)/2.0f;
s->eq_re_plot[2*i + 1] = coeffs[i].re/(float) FP_FACTOR;
if (min > coeffs[i].re)
min = coeffs[i].re;
if (max < coeffs[i].re)
max = coeffs[i].re;
s->eq_re_plot[2*i] = (i - len/2)/2.0f;
s->eq_re_plot[2*i + 1] = coeffs[i].re*s->constel_scaling;
s->eq_im_plot[2*i] = (i - len/2)/2.0f;
s->eq_im_plot[2*i + 1] = coeffs[i].im/(float) FP_FACTOR;
if (min > coeffs[i].im)
min = coeffs[i].im;
if (max < coeffs[i].im)
max = coeffs[i].im;
s->eq_im_plot[2*i] = (i - len/2)/2.0f;
s->eq_im_plot[2*i + 1] = coeffs[i].im*s->constel_scaling;
}
min /= (float) FP_FACTOR;
max /= (float) FP_FACTOR;
min *= s->constel_scaling;
max *= s->constel_scaling;
s->eq_x->minimum(-len/4.0);
s->eq_x->maximum(len/4.0);
@ -286,21 +286,21 @@ int qam_monitor_update_symbol_tracking(qam_monitor_t *s, float total_correction)
max = s->symbol_tracker[0];
for (i = s->symbol_track_ptr, j = 0; i < s->symbol_track_points; i++, j++)
{
s->symbol_track_plot[2*j] = j;
s->symbol_track_plot[2*j + 1] = s->symbol_tracker[i];
if (min > s->symbol_tracker[i])
min = s->symbol_tracker[i];
if (max < s->symbol_tracker[i])
max = s->symbol_tracker[i];
s->symbol_track_plot[2*j] = j;
s->symbol_track_plot[2*j + 1] = s->symbol_tracker[i];
}
for (i = 0; i < s->symbol_track_ptr; i++, j++)
{
s->symbol_track_plot[2*j] = j;
s->symbol_track_plot[2*j + 1] = s->symbol_tracker[i];
if (min > s->symbol_tracker[i])
min = s->symbol_tracker[i];
if (max < s->symbol_tracker[i])
max = s->symbol_tracker[i];
s->symbol_track_plot[2*j] = j;
s->symbol_track_plot[2*j + 1] = s->symbol_tracker[i];
}
s->symbol_track_y->maximum((fabs(max - min) < 0.05) ? max + 0.05 : max);
s->symbol_track_y->minimum(min);
@ -379,7 +379,7 @@ int qam_monitor_update_carrier_tracking(qam_monitor_t *s, float carrier_freq)
}
/*- End of function --------------------------------------------------------*/
qam_monitor_t *qam_monitor_init(float constel_width, const char *tag)
qam_monitor_t *qam_monitor_init(float constel_width, float constel_scaling, const char *tag)
{
char buf[132 + 1];
float x;
@ -391,6 +391,8 @@ qam_monitor_t *qam_monitor_init(float constel_width, const char *tag)
s->w = new Fl_Double_Window(905, 400, (tag) ? tag : "QAM monitor");
s->constel_scaling = 1.0/constel_scaling;
s->c_const = new Fl_Group(0, 0, 380, 400);
s->c_const->box(FL_DOWN_BOX);
s->c_const->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);

2
libs/spandsp/tests/modem_monitor.h
View File

@ -50,7 +50,7 @@ extern "C"
{
#endif
qam_monitor_t *qam_monitor_init(float constel_width, const char *tag);
qam_monitor_t *qam_monitor_init(float constel_width, float constel_scaling, const char *tag);
int qam_monitor_clear_constel(qam_monitor_t *s);
int qam_monitor_update_constel(qam_monitor_t *s, const complexf_t *pt);
int qam_monitor_update_equalizer(qam_monitor_t *s, const complexf_t *coeffs, int len);

73
libs/spandsp/tests/v17_tests.c
View File

@ -133,14 +133,17 @@ static void v17_rx_status(void *user_data, int status)
switch (status)
{
case SIG_STATUS_TRAINING_SUCCEEDED:
len = v17_rx_equalizer_state(s, &coeffs);
printf("Equalizer:\n");
for (i = 0; i < len; i++)
printf("Training succeeded\n");
if ((len = v17_rx_equalizer_state(s, &coeffs)))
{
printf("Equalizer:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/4096.0f, coeffs[i].im/4096.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V17_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V17_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
}
break;
}
}
@ -183,10 +186,11 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
int len;
#if defined(SPANDSP_USE_FIXED_POINT)
complexi16_t *coeffs;
complexf_t constel_point;
#else
complexf_t *coeffs;
#endif
complexf_t constel_point;
complexf_t target_point;
float fpower;
v17_rx_state_t *rx;
static float smooth_power = 0.0f;
@ -195,67 +199,56 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
rx = (v17_rx_state_t *) user_data;
if (constel)
{
fpower = (constel->re - target->re)*(constel->re - target->re)
+ (constel->im - target->im)*(constel->im - target->im);
#if defined(SPANDSP_USE_FIXED_POINT)
fpower /= 4096.0*4096.0;
#endif
constel_point.re = constel->re/V17_CONSTELLATION_SCALING_FACTOR;
constel_point.im = constel->im/V17_CONSTELLATION_SCALING_FACTOR;
target_point.re = target->re/V17_CONSTELLATION_SCALING_FACTOR,
target_point.im = target->im/V17_CONSTELLATION_SCALING_FACTOR,
fpower = (constel_point.re - target_point.re)*(constel_point.re - target_point.re)
+ (constel_point.im - target_point.im)*(constel_point.im - target_point.im);
smooth_power = 0.95f*smooth_power + 0.05f*fpower;
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
constel_point.re = constel->re/4096.0;
constel_point.im = constel->im/4096.0;
qam_monitor_update_constel(qam_monitor, &constel_point);
#else
qam_monitor_update_constel(qam_monitor, constel);
#endif
qam_monitor_update_carrier_tracking(qam_monitor, v17_rx_carrier_frequency(rx));
qam_monitor_update_symbol_tracking(qam_monitor, v17_rx_symbol_timing_correction(rx));
}
#endif
printf("%8d [%8.4f, %8.4f] [%8.4f, %8.4f] %2x %8.4f %8.4f %9.4f %7.3f %7.4f\n",
symbol_no,
#if defined(SPANDSP_USE_FIXED_POINT)
constel->re/4096.0,
constel->im/4096.0,
target->re/4096.0,
target->im/4096.0,
#else
constel->re,
constel->im,
target->re,
target->im,
#endif
constel_point.re,
constel_point.im,
target_point.re,
target_point.im,
symbol,
fpower,
smooth_power,
v17_rx_carrier_frequency(rx),
v17_rx_signal_power(rx),
v17_rx_symbol_timing_correction(rx));
//printf("Carrier %d %f %f\n", symbol_no, v17_rx_carrier_frequency(rx), v17_rx_symbol_timing_correction(rx));
symbol_no++;
if (--update_interval <= 0)
{
len = v17_rx_equalizer_state(rx, &coeffs);
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
if ((len = v17_rx_equalizer_state(rx, &coeffs)))
{
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/4096.0f, coeffs[i].im/4096.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V17_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V17_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
#if defined(ENABLE_GUI)
if (use_gui)
{
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
#else
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
#endif
}
#endif
}
#endif
update_interval = 100;
}
}
@ -481,7 +474,7 @@ int main(int argc, char *argv[])
#if defined(ENABLE_GUI)
if (use_gui)
{
qam_monitor = qam_monitor_init(10.0f, NULL);
qam_monitor = qam_monitor_init(10.0f, V17_CONSTELLATION_SCALING_FACTOR, NULL);
if (!decode_test_file)
{
start_line_model_monitor(129);

66
libs/spandsp/tests/v22bis_tests.c
View File

@ -129,14 +129,16 @@ static void v22bis_rx_status(void *user_data, int status)
case SIG_STATUS_TRAINING_SUCCEEDED:
bit_rate = v22bis_get_current_bit_rate(s->v22bis);
printf("Negotiated bit rate: %d\n", bit_rate);
len = v22bis_rx_equalizer_state(s->v22bis, &coeffs);
printf("Equalizer:\n");
for (i = 0; i < len; i++)
if ((len = v22bis_rx_equalizer_state(s->v22bis, &coeffs)))
{
printf("Equalizer:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/1024.0f, coeffs[i].im/1024.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V22BIS_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V22BIS_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
}
break;
}
}
@ -181,26 +183,25 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
int len;
#if defined(SPANDSP_USE_FIXED_POINT)
complexi16_t *coeffs;
complexf_t constel_point;
#else
complexf_t *coeffs;
#endif
complexf_t constel_point;
complexf_t target_point;
float fpower;
endpoint_t *s;
s = (endpoint_t *) user_data;
if (constel)
{
constel_point.re = constel->re/V22BIS_CONSTELLATION_SCALING_FACTOR;
constel_point.im = constel->im/V22BIS_CONSTELLATION_SCALING_FACTOR;
target_point.re = target->re/V22BIS_CONSTELLATION_SCALING_FACTOR;
target_point.im = target->im/V22BIS_CONSTELLATION_SCALING_FACTOR;
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
constel_point.re = constel->re/1024.0;
constel_point.im = constel->im/1024.0;
qam_monitor_update_constel(s->qam_monitor, &constel_point);
#else
qam_monitor_update_constel(s->qam_monitor, constel);
#endif
qam_monitor_update_carrier_tracking(s->qam_monitor, v22bis_rx_carrier_frequency(s->v22bis));
qam_monitor_update_symbol_tracking(s->qam_monitor, v22bis_rx_symbol_timing_correction(s->v22bis));
}
@ -211,17 +212,10 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
printf("%8d [%8.4f, %8.4f] [%8.4f, %8.4f] %2x %8.4f %8.4f %8.4f\n",
s->symbol_no,
#if defined(SPANDSP_USE_FIXED_POINT)
constel->re/1024.0,
constel->im/1024.0,
target->re/1024.0,
target->im/1024.0,
#else
constel->re,
constel->im,
target->re,
target->im,
#endif
constel_point.re,
constel_point.im,
target_point.re,
target_point.im,
symbol,
fpower,
s->smooth_power,
@ -231,24 +225,26 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
else
{
printf("Gardner step %d\n", symbol);
len = v22bis_rx_equalizer_state(s->v22bis, &coeffs);
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
if ((len = v22bis_rx_equalizer_state(s->v22bis, &coeffs)))
{
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/1024.0f, coeffs[i].im/1024.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V22BIS_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V22BIS_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
#if defined(ENABLE_GUI)
if (use_gui)
{
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
qam_monitor_update_int_equalizer(s->qam_monitor, coeffs, len);
qam_monitor_update_int_equalizer(s->qam_monitor, coeffs, len);
#else
qam_monitor_update_equalizer(s->qam_monitor, coeffs, len);
qam_monitor_update_equalizer(s->qam_monitor, coeffs, len);
#endif
}
#endif
}
#endif
}
}
/*- End of function --------------------------------------------------------*/
@ -381,8 +377,8 @@ int main(int argc, char *argv[])
#if defined(ENABLE_GUI)
if (use_gui)
{
endpoint[0].qam_monitor = qam_monitor_init(6.0f, "Calling modem");
endpoint[1].qam_monitor = qam_monitor_init(6.0f, "Answering modem");
endpoint[0].qam_monitor = qam_monitor_init(6.0f, V22BIS_CONSTELLATION_SCALING_FACTOR, "Calling modem");
endpoint[1].qam_monitor = qam_monitor_init(6.0f, V22BIS_CONSTELLATION_SCALING_FACTOR, "Answering modem");
}
#endif
if ((model = both_ways_line_model_init(line_model_no,

133
libs/spandsp/tests/v27ter_tests.c
View File

@ -129,14 +129,16 @@ static void v27ter_rx_status(void *user_data, int status)
switch (status)
{
case SIG_STATUS_TRAINING_SUCCEEDED:
len = v27ter_rx_equalizer_state(s, &coeffs);
printf("Equalizer:\n");
for (i = 0; i < len; i++)
if ((len = v27ter_rx_equalizer_state(s, &coeffs)))
{
printf("Equalizer:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/4096.0f, coeffs[i].im/4096.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V27TER_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V27TER_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
}
break;
}
}
@ -179,115 +181,94 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
int len;
#if defined(SPANDSP_USE_FIXED_POINT)
complexi16_t *coeffs;
complexf_t constel_point;
#else
complexf_t *coeffs;
#endif
complexf_t constel_point;
complexf_t target_point;
float fpower;
float error;
v27ter_rx_state_t *rx;
static float smooth_power = 0.0f;
#if defined(ENABLE_GUI)
static int reports = 0;
#endif
static int update_interval = 100;
rx = (v27ter_rx_state_t *) user_data;
if (constel)
{
fpower = (constel->re - target->re)*(constel->re - target->re)
+ (constel->im - target->im)*(constel->im - target->im);
#if defined(SPANDSP_USE_FIXED_POINT)
fpower /= 1024.0*1024.0;
#endif
constel_point.re = constel->re/V27TER_CONSTELLATION_SCALING_FACTOR;
constel_point.im = constel->im/V27TER_CONSTELLATION_SCALING_FACTOR;
target_point.re = target->re/V27TER_CONSTELLATION_SCALING_FACTOR;
target_point.im = target->im/V27TER_CONSTELLATION_SCALING_FACTOR;
fpower = (constel_point.re - target_point.re)*(constel_point.re - target_point.re)
+ (constel_point.im - target_point.im)*(constel_point.im - target_point.im);
smooth_power = 0.95f*smooth_power + 0.05f*fpower;
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
constel_point.re = constel->re/1024.0;
constel_point.im = constel->im/1024.0;
qam_monitor_update_constel(qam_monitor, &constel_point);
#else
qam_monitor_update_constel(qam_monitor, constel);
#endif
qam_monitor_update_carrier_tracking(qam_monitor, v27ter_rx_carrier_frequency(rx));
qam_monitor_update_symbol_tracking(qam_monitor, v27ter_rx_symbol_timing_correction(rx));
}
#endif
error = constel->im*target->re - constel->re*target->im;
#if defined(SPANDSP_USE_FIXED_POINT)
printf("Tracking error %f %f %f %f %f %f\n", error, v27ter_rx_carrier_frequency(rx), constel->re/1024.0, constel->im/1024.0, target->re/1024.0, target->im/1024.0);
#else
printf("Tracking error %f %f %f %f %f %f\n", error, v27ter_rx_carrier_frequency(rx), constel->re, constel->im, target->re, target->im);
#endif
printf("Tracking error %f %f %f %f %f %f\n", error, v27ter_rx_carrier_frequency(rx), constel_point.re, constel_point.im, target_point.re, target_point.im);
printf("%8d [%8.4f, %8.4f] [%8.4f, %8.4f] %2x %8.4f %8.4f %9.4f %7.3f %7.4f\n",
symbol_no,
#if defined(SPANDSP_USE_FIXED_POINT)
constel->re/1024.0,
constel->im/1024.0,
target->re/1024.0,
target->im/1024.0,
#else
constel->re,
constel->im,
target->re,
target->im,
#endif
constel_point.re,
constel_point.im,
target_point.re,
target_point.im,
symbol,
fpower,
smooth_power,
v27ter_rx_carrier_frequency(rx),
v27ter_rx_signal_power(rx),
v27ter_rx_symbol_timing_correction(rx));
len = v27ter_rx_equalizer_state(rx, &coeffs);
printf("Equalizer B:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/1024.0f, coeffs[i].im/1024.0f);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
#if defined(WITH_SPANDSP_INTERNALS)
printf("Gardtest %d %f %d\n", symbol_no, v27ter_rx_symbol_timing_correction(rx), rx->gardner_integrate);
#endif
printf("Carcar %d %f\n", symbol_no, v27ter_rx_carrier_frequency(rx));
#if defined(ENABLE_GUI)
if (use_gui)
symbol_no++;
if (--update_interval <= 0)
{
if (++reports >= 1000)
if ((len = v27ter_rx_equalizer_state(rx, &coeffs)))
{
printf("Equalizer B:\n");
for (i = 0; i < len; i++)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V27TER_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V27TER_CONSTELLATION_SCALING_FACTOR);
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
#else
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
#endif
}
}
update_interval = 100;
}
#endif
}
else
{
printf("Gardner step %d\n", symbol);
if ((len = v27ter_rx_equalizer_state(rx, &coeffs)))
{
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V27TER_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V27TER_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
#else
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
#endif
reports = 0;
}
}
#endif
symbol_no++;
}
else
{
printf("Gardner step %d\n", symbol);
len = v27ter_rx_equalizer_state(rx, &coeffs);
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/1024.0f, coeffs[i].im/1024.0f);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
#else
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
#endif
}
#endif
}
}
/*- End of function --------------------------------------------------------*/
@ -497,7 +478,7 @@ int main(int argc, char *argv[])
#if defined(ENABLE_GUI)
if (use_gui)
{
qam_monitor = qam_monitor_init(2.0f, NULL);
qam_monitor = qam_monitor_init(2.0f, V27TER_CONSTELLATION_SCALING_FACTOR, NULL);
if (!decode_test_file)
{
start_line_model_monitor(129);

71
libs/spandsp/tests/v29_tests.c
View File

@ -129,14 +129,16 @@ static void v29_rx_status(void *user_data, int status)
{
case SIG_STATUS_TRAINING_SUCCEEDED:
printf("Training succeeded\n");
len = v29_rx_equalizer_state(s, &coeffs);
printf("Equalizer:\n");
for (i = 0; i < len; i++)
if ((len = v29_rx_equalizer_state(s, &coeffs)))
{
printf("Equalizer:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/4096.0f, coeffs[i].im/4096.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V29_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V29_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
}
break;
}
}
@ -179,10 +181,11 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
int len;
#if defined(SPANDSP_USE_FIXED_POINT)
complexi16_t *coeffs;
complexf_t constel_point;
#else
complexf_t *coeffs;
#endif
complexf_t constel_point;
complexf_t target_point;
float fpower;
v29_rx_state_t *rx;
static float smooth_power = 0.0f;
@ -191,22 +194,17 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
rx = (v29_rx_state_t *) user_data;
if (constel)
{
fpower = (constel->re - target->re)*(constel->re - target->re)
+ (constel->im - target->im)*(constel->im - target->im);
#if defined(SPANDSP_USE_FIXED_POINT)
fpower /= 4096.0*4096.0;
#endif
constel_point.re = constel->re/V29_CONSTELLATION_SCALING_FACTOR;
constel_point.im = constel->im/V29_CONSTELLATION_SCALING_FACTOR;
target_point.re = target->re/V29_CONSTELLATION_SCALING_FACTOR,
target_point.im = target->im/V29_CONSTELLATION_SCALING_FACTOR,
fpower = (constel_point.re - target_point.re)*(constel_point.re - target_point.re)
+ (constel_point.im - target_point.im)*(constel_point.im - target_point.im);
smooth_power = 0.95f*smooth_power + 0.05f*fpower;
#if defined(ENABLE_GUI)
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
constel_point.re = constel->re/4096.0;
constel_point.im = constel->im/4096.0;
qam_monitor_update_constel(qam_monitor, &constel_point);
#else
qam_monitor_update_constel(qam_monitor, constel);
#endif
qam_monitor_update_carrier_tracking(qam_monitor, v29_rx_carrier_frequency(rx));
//qam_monitor_update_carrier_tracking(qam_monitor, (fpower) ? fpower : 0.001f);
qam_monitor_update_symbol_tracking(qam_monitor, v29_rx_symbol_timing_correction(rx));
@ -214,17 +212,10 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
#endif
printf("%8d [%8.4f, %8.4f] [%8.4f, %8.4f] %2x %8.4f %8.4f %9.4f %7.3f %7.4f\n",
symbol_no,
#if defined(SPANDSP_USE_FIXED_POINT)
constel->re/4096.0,
constel->im/4096.0,
target->re/4096.0,
target->im/4096.0,
#else
constel->re,
constel->im,
target->re,
target->im,
#endif
constel_point.re,
constel_point.im,
target_point.re,
target_point.im,
symbol,
fpower,
smooth_power,
@ -234,24 +225,26 @@ static void qam_report(void *user_data, const complexf_t *constel, const complex
symbol_no++;
if (--update_interval <= 0)
{
len = v29_rx_equalizer_state(rx, &coeffs);
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
if ((len = v29_rx_equalizer_state(rx, &coeffs)))
{
printf("Equalizer A:\n");
for (i = 0; i < len; i++)
#if defined(SPANDSP_USE_FIXED_POINT)
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/4096.0f, coeffs[i].im/4096.0f);
printf("%3d (%15.5f, %15.5f)\n", i, coeffs[i].re/V29_CONSTELLATION_SCALING_FACTOR, coeffs[i].im/V29_CONSTELLATION_SCALING_FACTOR);
#else
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
printf("%3d (%15.5f, %15.5f) -> %15.5f\n", i, coeffs[i].re, coeffs[i].im, powerf(&coeffs[i]));
#endif
#if defined(ENABLE_GUI)
if (use_gui)
{
if (use_gui)
{
#if defined(SPANDSP_USE_FIXED_POINT)
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
qam_monitor_update_int_equalizer(qam_monitor, coeffs, len);
#else
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
qam_monitor_update_equalizer(qam_monitor, coeffs, len);
#endif
}
#endif
}
#endif
update_interval = 100;
}
}
@ -470,7 +463,7 @@ int main(int argc, char *argv[])
#if defined(ENABLE_GUI)
if (use_gui)
{
qam_monitor = qam_monitor_init(6.0f, NULL);
qam_monitor = qam_monitor_init(6.0f, V29_CONSTELLATION_SCALING_FACTOR, NULL);
if (!decode_test_file)
{
start_line_model_monitor(129);