TDOA measurements at 99300 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 4070 | 2019-04-20T21-28-35_99700000_pankrac | 2019-04-20T21-28-35_99700000_brmlab |
|---|
| gain | [1, 1, 1, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 99700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 25.290 stddev = 0.005 reference, 3.589 target [samples]; known correct: 24.029 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T21-28-35_99700000_pankrac <--> 2019-04-20T21-28-35_99700000_brmlab (pass 1)
reference error = 0.538906 ppm, target error = 0.333306 ppm
Measured dist: 25.468319 target fitness: 1.089434 stddevs: 36.893829 target, 0.148419 reference
gold result: 24.028855
2019-04-20T21-28-35_99700000_pankrac <--> 2019-04-20T21-28-35_99700000_brmlab (pass 2)
snr: 26.4 42.4 dB
reference error = -0.007916 ppm, target error = 0.133283 ppm
Measured dist: 25.289752 target fitness: 1.087210 stddevs: 3.589484 target, 0.004899 reference
gold result: 24.028855
| correlation 4071 | 2019-04-20T21-28-35_99700000_pankrac | 2019-04-20T21-28-35_99700000_luna |
|---|
| gain | [1, 1, 1, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 99700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 12.335 stddev = 0.008 reference, 9.259 target [samples]; known correct: 12.168 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-28-35_99700000_pankrac <--> 2019-04-20T21-28-35_99700000_luna (pass 1)
reference error = 0.290155 ppm, target error = 0.168273 ppm
Measured dist: 12.370406 target fitness: 1.088120 stddevs: 41.709892 target, 0.079866 reference
gold result: 12.168451
2019-04-20T21-28-35_99700000_pankrac <--> 2019-04-20T21-28-35_99700000_luna (pass 2)
snr: 26.4 27.7 dB
reference error = -0.008502 ppm, target error = -0.157022 ppm
Measured dist: 12.334628 target fitness: 1.086293 stddevs: 9.258780 target, 0.008028 reference
gold result: 12.168451
| correlation 4072 | 2019-04-20T21-28-35_99700000_pankrac | 2019-04-20T21-28-35_99700000_brevnov |
|---|
| gain | [1, 1, 1, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 99700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -33.491 stddev = 0.004 reference, 0.504 target [samples]; known correct: -34.387 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-28-35_99700000_pankrac <--> 2019-04-20T21-28-35_99700000_brevnov (pass 1)
reference error = -0.094854 ppm, target error = -0.208829 ppm
Measured dist: -33.524162 target fitness: 1.088020 stddevs: 14.353293 target, 0.026042 reference
gold result: -34.387361
2019-04-20T21-28-35_99700000_pankrac <--> 2019-04-20T21-28-35_99700000_brevnov (pass 2)
snr: 26.4 50.1 dB
reference error = 0.001656 ppm, target error = -0.219997 ppm
Measured dist: -33.490724 target fitness: 1.087905 stddevs: 0.504449 target, 0.003803 reference
gold result: -34.387361
| correlation 4073 | 2019-04-20T21-28-35_99700000_brmlab | 2019-04-20T21-28-35_99700000_luna |
|---|
| gain | [5, 5, 5, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 99700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -12.654 stddev = 0.008 reference, 0.742 target [samples]; known correct: -11.860 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-28-35_99700000_brmlab <--> 2019-04-20T21-28-35_99700000_luna (pass 1)
reference error = -0.239881 ppm, target error = -0.173743 ppm
Measured dist: -13.218146 target fitness: 1.087320 stddevs: 30.170872 target, 0.066749 reference
gold result: -11.860404
2019-04-20T21-28-35_99700000_brmlab <--> 2019-04-20T21-28-35_99700000_luna (pass 2)
snr: 42.6 27.7 dB
reference error = 0.000283 ppm, target error = -0.152487 ppm
Measured dist: -12.653659 target fitness: 1.086379 stddevs: 0.742072 target, 0.007739 reference
gold result: -11.860404
| correlation 4074 | 2019-04-20T21-28-35_99700000_brmlab | 2019-04-20T21-28-35_99700000_brevnov |
|---|
| gain | [5, 5, 5, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 99700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -58.959 stddev = 0.005 reference, 0.842 target [samples]; known correct: -58.416 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-28-35_99700000_brmlab <--> 2019-04-20T21-28-35_99700000_brevnov (pass 1)
reference error = -0.633042 ppm, target error = -0.251726 ppm
Measured dist: -59.649502 target fitness: 1.091090 stddevs: 31.204308 target, 0.174090 reference
gold result: -58.416216
2019-04-20T21-28-35_99700000_brmlab <--> 2019-04-20T21-28-35_99700000_brevnov (pass 2)
snr: 42.7 50.1 dB
reference error = 0.011588 ppm, target error = -0.281219 ppm
Measured dist: -58.958694 target fitness: 1.088345 stddevs: 0.841649 target, 0.005250 reference
gold result: -58.416216
| correlation 4075 | 2019-04-20T21-28-35_99700000_luna | 2019-04-20T21-28-35_99700000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 99700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -45.735 stddev = 0.010 reference, 0.312 target [samples]; known correct: -46.556 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-20T21-28-35_99700000_luna <--> 2019-04-20T21-28-35_99700000_brevnov (pass 1)
reference error = -0.393270 ppm, target error = -0.200779 ppm
Measured dist: -46.187645 target fitness: 1.089952 stddevs: 28.839695 target, 0.107319 reference
gold result: -46.555812
2019-04-20T21-28-35_99700000_luna <--> 2019-04-20T21-28-35_99700000_brevnov (pass 2)
snr: 27.8 50.0 dB
reference error = 0.020665 ppm, target error = 0.015215 ppm
Measured dist: -45.734952 target fitness: 1.088322 stddevs: 0.311505 target, 0.009541 reference
gold result: -46.555812
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
