TDOA measurements at 610000 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 3842 | 2019-04-20T20-07-01_610000000_pankrac | 2019-04-20T20-07-01_610000000_brmlab |
|---|
| gain | [15, 15, 15, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 610000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -24.277 stddev = 0.011 reference, 0.073 target [samples]; known correct: -24.045 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T20-07-01_610000000_pankrac <--> 2019-04-20T20-07-01_610000000_brmlab (pass 1)
reference error = 0.478479 ppm, target error = 0.402640 ppm
Measured dist: -24.358149 target fitness: 2.722088 stddevs: 64.801918 target, 0.131025 reference
gold result: -24.044513
2019-04-20T20-07-01_610000000_pankrac <--> 2019-04-20T20-07-01_610000000_brmlab (pass 2)
snr: 3.8 3.2 dB
reference error = 0.037561 ppm, target error = 0.046405 ppm
Measured dist: -24.276881 target fitness: 14.412580 stddevs: 0.073198 target, 0.011065 reference
gold result: -24.044513
| correlation 3843 | 2019-04-20T20-07-01_610000000_pankrac | 2019-04-20T20-07-01_610000000_luna |
|---|
| gain | [15, 15, 15, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 610000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -69.371 stddev = 0.009 reference, 0.042 target [samples]; known correct: -69.148 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-20T20-07-01_610000000_pankrac <--> 2019-04-20T20-07-01_610000000_luna (pass 1)
reference error = 0.262081 ppm, target error = 0.256994 ppm
Measured dist: -69.342804 target fitness: 7.994501 stddevs: 0.356189 target, 0.072473 reference
gold result: -69.147859
2019-04-20T20-07-01_610000000_pankrac <--> 2019-04-20T20-07-01_610000000_luna (pass 2)
snr: 3.8 3.7 dB
reference error = -0.011376 ppm, target error = 0.004950 ppm
Measured dist: -69.371260 target fitness: 13.721504 stddevs: 0.042492 target, 0.008888 reference
gold result: -69.147859
| correlation 3844 | 2019-04-20T20-07-01_610000000_pankrac | 2019-04-20T20-07-01_610000000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 610000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -8.665 stddev = 0.004 reference, 0.023 target [samples]; known correct: -8.808 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-07-01_610000000_pankrac <--> 2019-04-20T20-07-01_610000000_brevnov (pass 1)
reference error = -0.097824 ppm, target error = -0.067073 ppm
Measured dist: -8.724211 target fitness: 18.374295 stddevs: 0.095445 target, 0.027237 reference
gold result: -8.807681
2019-04-20T20-07-01_610000000_pankrac <--> 2019-04-20T20-07-01_610000000_brevnov (pass 2)
snr: 3.8 7.0 dB
reference error = 0.000476 ppm, target error = -0.003062 ppm
Measured dist: -8.665066 target fitness: 18.935464 stddevs: 0.023314 target, 0.003573 reference
gold result: -8.807681
| correlation 3845 | 2019-04-20T20-07-01_610000000_brmlab | 2019-04-20T20-07-01_610000000_luna |
|---|
| gain | [15, 15, 15, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 610000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -45.165 stddev = 0.008 reference, 0.051 target [samples]; known correct: -45.103 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-07-01_610000000_brmlab <--> 2019-04-20T20-07-01_610000000_luna (pass 1)
reference error = -0.266442 ppm, target error = -0.248082 ppm
Measured dist: -45.151192 target fitness: 12.379340 stddevs: 0.345616 target, 0.073322 reference
gold result: -45.103346
2019-04-20T20-07-01_610000000_brmlab <--> 2019-04-20T20-07-01_610000000_luna (pass 2)
snr: 3.8 3.7 dB
reference error = 0.002043 ppm, target error = 0.026481 ppm
Measured dist: -45.165383 target fitness: 18.790340 stddevs: 0.050908 target, 0.007556 reference
gold result: -45.103346
| correlation 3846 | 2019-04-20T20-07-01_610000000_brmlab | 2019-04-20T20-07-01_610000000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 610000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 15.442 stddev = 0.005 reference, 0.041 target [samples]; known correct: 15.237 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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|
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Correlator log
2019-04-20T20-07-01_610000000_brmlab <--> 2019-04-20T20-07-01_610000000_brevnov (pass 1)
reference error = -0.600428 ppm, target error = -0.618188 ppm
Measured dist: 15.481872 target fitness: 6.888998 stddevs: 0.847776 target, 0.162613 reference
gold result: 15.236832
2019-04-20T20-07-01_610000000_brmlab <--> 2019-04-20T20-07-01_610000000_brevnov (pass 2)
snr: 3.6 7.0 dB
reference error = -0.007326 ppm, target error = -0.024969 ppm
Measured dist: 15.442282 target fitness: 26.908686 stddevs: 0.041432 target, 0.004503 reference
gold result: 15.236832
| correlation 3847 | 2019-04-20T20-07-01_610000000_luna | 2019-04-20T20-07-01_610000000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 610000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 60.562 stddev = 0.009 reference, 0.036 target [samples]; known correct: 60.340 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-07-01_610000000_luna <--> 2019-04-20T20-07-01_610000000_brevnov (pass 1)
reference error = -0.365955 ppm, target error = -0.371803 ppm
Measured dist: 60.613216 target fitness: 7.401909 stddevs: 0.515021 target, 0.099783 reference
gold result: 60.340178
2019-04-20T20-07-01_610000000_luna <--> 2019-04-20T20-07-01_610000000_brevnov (pass 2)
snr: 3.8 7.1 dB
reference error = 0.021658 ppm, target error = -0.003184 ppm
Measured dist: 60.561806 target fitness: 24.292284 stddevs: 0.036226 target, 0.008861 reference
gold result: 60.340178
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
