TDOA measurements at 96200 kHz
Legend
Spectrum:
- Green: zero offset
- Red: target signal
Waterfall:
Correlation function:
- Mouse over to show the fitted result
- White (on the very left): this correlation has been used (no retuning && sufficient fitness)
- Yellow on the left: fitness function (grows to the right)
- Cyan lines: lines fitted through the reference and target transmitters
- Yellow dots: correlation peaks that were used
- Red line: gold result (if the position of the target is known)
You will find the map at the bottom of the page. (jump there)
| correlation 4250 | 2019-04-20T22-57-50_96200000_pankrac | 2019-04-20T22-57-50_96200000_brmlab |
|---|
| gain | [7, 7, 7, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.883 stddev = 0.011 reference, 0.990 target [samples]; known correct: -2.870 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T22-57-50_96200000_pankrac <--> 2019-04-20T22-57-50_96200000_brmlab (pass 1)
reference error = 0.487170 ppm, target error = 0.104272 ppm
Measured dist: -0.962756 target fitness: 1.353535 stddevs: 3.989778 target, 0.134296 reference
gold result: -2.869775
2019-04-20T22-57-50_96200000_pankrac <--> 2019-04-20T22-57-50_96200000_brmlab (pass 2)
snr: 35.6 44.2 dB
reference error = 0.035384 ppm, target error = 0.091122 ppm
Measured dist: -1.882803 target fitness: 1.358955 stddevs: 0.989758 target, 0.010670 reference
gold result: -2.869775
| correlation 4251 | 2019-04-20T22-57-50_96200000_pankrac | 2019-04-20T22-57-50_96200000_luna |
|---|
| gain | [7, 7, 7, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -42.814 stddev = 0.011 reference, 1.502 target [samples]; known correct: -41.645 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-57-50_96200000_pankrac <--> 2019-04-20T22-57-50_96200000_luna (pass 1)
reference error = 0.268378 ppm, target error = -0.026951 ppm
Measured dist: -42.912125 target fitness: 1.393006 stddevs: 2.533674 target, 0.073618 reference
gold result: -41.645325
2019-04-20T22-57-50_96200000_pankrac <--> 2019-04-20T22-57-50_96200000_luna (pass 2)
snr: 35.5 34.3 dB
reference error = 0.010062 ppm, target error = -0.029122 ppm
Measured dist: -42.813895 target fitness: 1.396565 stddevs: 1.501980 target, 0.010773 reference
gold result: -41.645325
| correlation 4252 | 2019-04-20T22-57-50_96200000_pankrac | 2019-04-20T22-57-50_96200000_brevnov |
|---|
| gain | [7, 7, 7, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -40.389 stddev = 0.004 reference, 1.093 target [samples]; known correct: -42.720 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-57-50_96200000_pankrac <--> 2019-04-20T22-57-50_96200000_brevnov (pass 1)
reference error = -0.002732 ppm, target error = 0.101119 ppm
Measured dist: -40.390431 target fitness: 1.390930 stddevs: 1.097271 target, 0.004325 reference
gold result: -42.719992
2019-04-20T22-57-50_96200000_pankrac <--> 2019-04-20T22-57-50_96200000_brevnov (pass 2)
snr: 35.6 58.3 dB
reference error = 0.002196 ppm, target error = 0.102961 ppm
Measured dist: -40.388819 target fitness: 1.391418 stddevs: 1.093303 target, 0.004083 reference
gold result: -42.719992
| correlation 4253 | 2019-04-20T22-57-50_96200000_brmlab | 2019-04-20T22-57-50_96200000_luna |
|---|
| gain | [3, 3, 3, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -40.562 stddev = 0.017 reference, 1.171 target [samples]; known correct: -38.776 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-57-50_96200000_brmlab <--> 2019-04-20T22-57-50_96200000_luna (pass 1)
reference error = -0.196565 ppm, target error = -0.141541 ppm
Measured dist: -40.062800 target fitness: 1.400885 stddevs: 2.048738 target, 0.054031 reference
gold result: -38.775550
2019-04-20T22-57-50_96200000_brmlab <--> 2019-04-20T22-57-50_96200000_luna (pass 2)
snr: 43.9 34.3 dB
reference error = -0.047036 ppm, target error = -0.014541 ppm
Measured dist: -40.561845 target fitness: 1.408792 stddevs: 1.171052 target, 0.016741 reference
gold result: -38.775550
| correlation 4254 | 2019-04-20T22-57-50_96200000_brmlab | 2019-04-20T22-57-50_96200000_brevnov |
|---|
| gain | [3, 3, 3, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -38.414 stddev = 0.005 reference, 0.388 target [samples]; known correct: -39.850 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-57-50_96200000_brmlab <--> 2019-04-20T22-57-50_96200000_brevnov (pass 1)
reference error = -0.533140 ppm, target error = -0.126493 ppm
Measured dist: -38.478702 target fitness: 1.389472 stddevs: 3.762671 target, 0.145151 reference
gold result: -39.850218
2019-04-20T22-57-50_96200000_brmlab <--> 2019-04-20T22-57-50_96200000_brevnov (pass 2)
snr: 44.3 58.3 dB
reference error = 0.012233 ppm, target error = 0.010811 ppm
Measured dist: -38.413623 target fitness: 1.406195 stddevs: 0.387610 target, 0.005191 reference
gold result: -39.850218
| correlation 4255 | 2019-04-20T22-57-50_96200000_luna | 2019-04-20T22-57-50_96200000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 1.852 stddev = 0.010 reference, 0.861 target [samples]; known correct: -1.075 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-57-50_96200000_luna <--> 2019-04-20T22-57-50_96200000_brevnov (pass 1)
reference error = -0.297163 ppm, target error = -0.049026 ppm
Measured dist: 1.553126 target fitness: 1.354811 stddevs: 2.167084 target, 0.080042 reference
gold result: -1.074668
2019-04-20T22-57-50_96200000_luna <--> 2019-04-20T22-57-50_96200000_brevnov (pass 2)
snr: 34.3 58.2 dB
reference error = 0.017330 ppm, target error = 0.061647 ppm
Measured dist: 1.852325 target fitness: 1.353368 stddevs: 0.860555 target, 0.010347 reference
gold result: -1.074668
Map
- receivers
- real position (if known)- blue line - measurement hyperbola
- pale blue line - measurement hyperbola of measurement with high standard deviation
- red line - standard deviation error bar
