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Separate output correction

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Removed_REF_marker
erikkaashoek 5 years ago
parent 0d552fd55a
commit fbb3797017
4 changed files with 94 additions and 26 deletions
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17
main.c
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@ -1016,10 +1016,18 @@ config_t config = {
.lna_level_offset = 100,
.low_level_output_offset = 0.0, // Uncalibrated
.high_level_output_offset = 0.0, // Uncalibrated
.correction_frequency = {{ 1000000, 500000000, 1000000000, 1500000000, 2000000000, 2500000000, 3000000000, 3500000000, 4000000000, 4500000000, 5000000000, 5500000000, 6000000000, 6500000000, 7000000000, 7500000000, 8000000000, 8500000000, 9000000000, 10000000000 },
{ 1000000, 500000000, 1000000000, 1500000000, 2000000000, 2500000000, 3000000000, 3500000000, 4000000000, 4500000000, 5000000000, 5500000000, 6000000000, 6500000000, 7000000000, 7500000000, 8000000000, 8500000000, 9000000000, 10000000000 }},
.correction_value = {{ 0, +1, +2, +2.5, +3, +3.5, +6.5, +9.5, +10, +9, +9, +23, +24, +24, +24, +24, +24, +24, +24, +24 },
{ 0, +1, +2.5, +1, +2.5, +6, +9, +11.5, +14.5, +23, +25, +36, +46, +46, +46, +46, +46, +46, +46, +46 }},
.correction_frequency =
{
{ 10000, 100000, 300000, 1000000, 30000000, 500000000, 750000000, 1000000000, 1500000000, 1520000000, 2000000000, 2500000000, 3000000000, 3500000000, 4000000000, 4500000000, 5000000000, 5500000000, 6000000000, 6500000000 },
{ 10000, 100000, 300000, 1000000, 30000000, 500000000, 750000000, 1000000000, 1500000000, 1520000000, 2000000000, 2500000000, 3000000000, 3500000000, 4000000000, 4500000000, 5000000000, 5500000000, 6000000000, 6500000000 },
{ 10000, 100000, 300000, 1000000, 30000000, 500000000, 750000000, 1000000000, 1500000000, 1520000000, 2000000000, 2500000000, 3000000000, 3500000000, 4000000000, 4500000000, 5000000000, 5500000000, 6000000000, 6500000000 },
},
.correction_value =
{
{ 10.5, +4.9, +1.6, +0.6, 0, 0, +4, +2.5, +2, +2, +2, +3.5, +6.5, +6.5, +9, +9, +9, +11, +11, +11, },
{ 10.5, +4.9, +1.6, +0.6, 0, 0, +4, +2.5, +2, +2, +2, +6, +9, +11.5, +14.5, +23, +25, +36, +46, +46, },
{ 10.5, +4.9, +1.6, +0.6, 0, 0, +4, +2.5, +2, +2, +2, +3.5, +6.5, +6.5, +9, +9, +9, +11, +11, +11, },
},
.setting_frequency_30mhz = 30000000,
.cor_am = 0,
.cor_wfm = 0,
@ -2508,6 +2516,7 @@ static const VNAShellCommand commands[] =
#endif
#ifdef TINYSA4
{ "g", cmd_g, CMD_WAIT_MUTEX },
{ "z", cmd_z, CMD_WAIT_MUTEX },
#endif
#ifdef __ADF4351__
{ "x", cmd_x, CMD_WAIT_MUTEX },

13
nanovna.h
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@ -134,10 +134,11 @@ typedef uint32_t freq_t;
typedef uint64_t freq_t;
typedef int64_t long_t;
#define CORRECTION_POINTS 20 // Frequency dependent level correction table entries
#define CORRECTION_LOW 0
#define CORRECTION_LNA 1
#define CORRECTION_HIGH 2
#define CORRECTION_SIZE 3
#define CORRECTION_LOW 0
#define CORRECTION_LNA 1
#define CORRECTION_LOW_OUT 2
#define CORRECTION_HIGH 3
#define CORRECTION_SIZE 4
#endif
@ -633,7 +634,11 @@ typedef struct config {
float high_level_offset;
float low_level_output_offset;
float high_level_output_offset;
#ifdef TINYSA4
float lna_level_offset;
float harmonic_level_offset;
float shift_level_offset;
#endif
float correction_value[CORRECTION_SIZE][CORRECTION_POINTS];
freq_t correction_frequency[CORRECTION_SIZE][CORRECTION_POINTS];
#ifdef TINYSA4

23
sa_cmd.c
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@ -294,9 +294,9 @@ VNA_SHELL_FUNCTION(cmd_leveloffset)
{
// 0 1 2
#ifdef TINYSA4
static const char cmd_mode_list[] = "low|high|switch";
static const char cmd_mode_list[] = "low|high|switch|lna|harmonic|shift";
#else
static const char cmd_mode_list[] = "low|high|switch|lna";
static const char cmd_mode_list[] = "low|high|switch";
#endif
if (argc == 0) {
const char *p = "leveloffset %s %.1f\r\n";
@ -307,6 +307,8 @@ VNA_SHELL_FUNCTION(cmd_leveloffset)
shell_printf(p, "switch", config.switch_offset);
#ifdef TINYSA4
shell_printf(p, "lna", config.lna_level_offset);
shell_printf(p, "harmonic", config.harmonic_level_offset);
shell_printf(p, "shift", config.shift_level_offset);
#endif
return;
}
@ -321,6 +323,8 @@ VNA_SHELL_FUNCTION(cmd_leveloffset)
case 2: config.switch_offset = v; break;
#ifdef TINYSA4
case 3: config.lna_level_offset = v; break;
case 4: config.harmonic_level_offset = v; break;
case 5: config.shift_level_offset = v; break;
#endif
default: goto usage;
}
@ -714,6 +718,19 @@ VNA_SHELL_FUNCTION(cmd_y)
shell_printf("\r\n");
#endif
}
#ifdef TINYSA4
VNA_SHELL_FUNCTION(cmd_z)
{
if (argc != 1) {
shell_printf("usage: z 0..30000\r\n%d\r\n", SI4432_step_delay);
return;
}
if (argc == 1) {
setting.step_delay = atoi(argv[0]);
dirty = true;
}
}
#endif
#if 0 // not used
VNA_SHELL_FUNCTION(cmd_z)
{
@ -851,7 +868,7 @@ VNA_SHELL_FUNCTION(cmd_correction)
{
(void)argc;
#ifdef TINYSA4
static const char cmd[] = "low|lna|high";
static const char cmd[] = "low|lna|out|high";
static const char range[] = "0-19";
#else
static const char cmd[] = "low|high";

67
sa_core.c
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@ -294,8 +294,8 @@ void reset_settings(int m)
#ifdef TINYSA4
setting.extra_lna = false;
#endif
setting.correction_frequency = config.correction_frequency[CORRECTION_LOW];
setting.correction_value = config.correction_value[CORRECTION_LOW];
setting.correction_frequency = config.correction_frequency[CORRECTION_LOW_OUT];
setting.correction_value = config.correction_value[CORRECTION_LOW_OUT];
level_min = SL_GENLOW_LEVEL_MIN + config.low_level_output_offset;
level_max = SL_GENLOW_LEVEL_MAX + config.low_level_output_offset;
level_range = level_max - level_min;
@ -1369,14 +1369,14 @@ static const struct {
int16_t noise_level;
} step_delay_table[]={
// RBWx10 step_delay offset_delay spur_gate (value divided by 1000)
{ 8500, 100, 50, 400, -90},
{ 3000, 200, 50, 200, -95},
{ 1000, 400, 100, 100, -105},
{ 8500, 150, 50, 400, -90},
{ 3000, 150, 50, 200, -95},
{ 1000, 300, 100, 100, -105},
{ 300, 400, 120, 100, -110},
{ 100, 700, 120, 100, -115},
{ 30, 900, 300, 100, -120},
{ 10, 4000, 600, 100, -122},
{ 3, 9000, 3000, 100, -125}
{ 100, 600, 120, 100, -115},
{ 30, 1100, 300, 100, -120},
{ 10, 5000, 600, 100, -122},
{ 3, 10000, 3000, 100, -125}
};
#endif
@ -1490,6 +1490,23 @@ pureRSSI_t get_frequency_correction(freq_t f) // Frequency dependent RSSI c
pureRSSI_t cv = 0;
if (setting.mode == M_GENHIGH)
return(0.0);
#ifdef TINYSA4
if (setting.mode == M_LOW && ultra && f > ultra_threshold) {
#if 0
freq_t local_IF = config.frequency_IF1 + STATIC_DEFAULT_SPUR_OFFSET/2;
if ( f > local_IF && f < local_IF + MIN_BELOW_LO) { // Jump at local_IF + MIN_BELOW_LO = 978 - 550 = 1527MHz
cv += ( float_TO_PURE_RSSI(1.5) * (f - local_IF) ) / MIN_BELOW_LO; // +2.5dB correction.
}
if ( f > MAX_LO_FREQ - local_IF && f < ULTRA_MAX_FREQ) { // = 4350 - 978 = 3372MHz up to 5350MHz
cv += float_TO_PURE_RSSI(1); // +1dB correction.
}
#endif
if ( f > ULTRA_MAX_FREQ) {
cv += float_TO_PURE_RSSI(9); // +9dB correction.
}
}
#endif
#ifdef TINYSA4
#if 0 // Not implemented
int cf = (((f >> 28)+1)>>1) - 5; // Correction starts at 2,684,354,560Hz round to closest correction frequency
@ -2362,6 +2379,12 @@ static systime_t sweep_elapsed = 0; // Time since fi
uint8_t signal_is_AM = false;
static uint8_t check_for_AM = false;
static int is_below = false;
#ifdef TINYSA4
static int LO_shifted;
static int LO_mirrored;
static int LO_harmonic;
static int LO_shifting;
#endif
static void calculate_static_correction(void) // Calculate the static part of the RSSI correction
{
@ -2747,9 +2770,10 @@ again: // Spur redu
local_IF=0; // For all high modes
#ifdef TINYSA4
int LO_shifted = false;
int LO_mirrored = false;
int LO_harmonic = false;
LO_shifted = false;
LO_mirrored = false;
LO_harmonic = false;
LO_shifting = false;
#endif
if (MODE_LOW(setting.mode)){ // All low mode
if (!setting.auto_IF)
@ -2757,7 +2781,7 @@ again: // Spur redu
else
{
#ifdef TINYSA4
local_IF = config.frequency_IF1 + STATIC_DEFAULT_SPUR_OFFSET/2; ;
local_IF = config.frequency_IF1 + STATIC_DEFAULT_SPUR_OFFSET/2;
#if 0
if ( S_IS_AUTO(setting.below_IF)) {
// if (f < 2000000 && S_IS_AUTO(setting.spur_removal))
@ -2816,6 +2840,9 @@ again: // Spur redu
}
else
{
#ifdef TINYSA4
LO_shifting = true;
#endif
if (spur_second_pass) {
#ifdef TINYSA4
local_IF = local_IF + DEFAULT_SPUR_OFFSET/2; // apply IF spur shift
@ -3220,8 +3247,13 @@ again: // Spur redu
int my_step_delay = SI4432_step_delay;
if (f < 2000000 && actual_rbw_x10 == 3)
my_step_delay = my_step_delay * 2;
if (LO_shifted) // || SI4463_offset_changed)
my_step_delay = my_step_delay * 2;
// if (LO_shifted) // || SI4463_offset_changed)
// my_step_delay = my_step_delay * 2;
if (actual_rbw_x10 >= 1000 && SI4463_frequency_changed && ADF4351_frequency_changed) {
my_step_delay -= 200; // compensate for additional delay of setting SI4463
if (my_step_delay < 0)
my_step_delay = 0;
}
my_microsecond_delay(my_step_delay * ((setting.R == 0 && old_R > 5 ) ? 8 : 1));
ADF4351_frequency_changed = false;
SI4463_frequency_changed = false;
@ -3267,6 +3299,11 @@ again: // Spur redu
}
#endif
if (LO_shifting)
pureRSSI -= float_TO_PURE_RSSI(config.shift_level_offset);
if (LO_harmonic)
pureRSSI -= float_TO_PURE_RSSI(config.harmonic_level_offset);
if (RSSI < pureRSSI) // Take max during subscanning
RSSI = pureRSSI;
t++; // one subscan done

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