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 4184 | 2019-04-20T22-11-43_95300000_pankrac | 2019-04-20T22-11-43_95300000_luna |
|---|
| gain | [8, 8, 8, 1] | [9, 9, 9, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -44.004 stddev = 0.008 reference, 1.441 target [samples]; known correct: -41.645 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T22-11-43_95300000_pankrac <--> 2019-04-20T22-11-43_95300000_luna (pass 1)
reference error = 0.271743 ppm, target error = 0.068134 ppm
Measured dist: -43.718554 target fitness: 2.247763 stddevs: 2.166584 target, 0.072011 reference
gold result: -41.645325
2019-04-20T22-11-43_95300000_pankrac <--> 2019-04-20T22-11-43_95300000_luna (pass 2)
snr: 32.5 34.2 dB
reference error = -0.008705 ppm, target error = 0.016441 ppm
Measured dist: -44.003503 target fitness: 2.245984 stddevs: 1.440759 target, 0.007580 reference
gold result: -41.645325
| correlation 4185 | 2019-04-20T22-11-43_95300000_pankrac | 2019-04-20T22-11-43_95300000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -40.766 stddev = 0.004 reference, 1.111 target [samples]; known correct: -42.720 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-20T22-11-43_95300000_pankrac <--> 2019-04-20T22-11-43_95300000_brevnov (pass 1)
reference error = -0.009204 ppm, target error = -0.034000 ppm
Measured dist: -40.780767 target fitness: 2.228009 stddevs: 1.114988 target, 0.004489 reference
gold result: -42.719992
2019-04-20T22-11-43_95300000_pankrac <--> 2019-04-20T22-11-43_95300000_brevnov (pass 2)
snr: 32.5 61.5 dB
reference error = -0.000627 ppm, target error = -0.042024 ppm
Measured dist: -40.765967 target fitness: 2.228715 stddevs: 1.111278 target, 0.004196 reference
gold result: -42.719992
| correlation 4186 | 2019-04-20T22-11-43_95300000_pankrac | 2019-04-20T22-11-43_95300000_brmlab |
|---|
| 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 | 95300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -2.119 stddev = 0.009 reference, 1.021 target [samples]; known correct: -2.870 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-11-43_95300000_pankrac <--> 2019-04-20T22-11-43_95300000_brmlab (pass 1)
reference error = -0.343237 ppm, target error = -0.080251 ppm
Measured dist: -2.997660 target fitness: 2.153942 stddevs: 2.345009 target, 0.093978 reference
gold result: -2.869775
2019-04-20T22-11-43_95300000_pankrac <--> 2019-04-20T22-11-43_95300000_brmlab (pass 2)
snr: 32.5 39.3 dB
reference error = -0.027331 ppm, target error = -0.208859 ppm
Measured dist: -2.118672 target fitness: 2.152818 stddevs: 1.021110 target, 0.008671 reference
gold result: -2.869775
| correlation 4187 | 2019-04-20T22-11-43_95300000_luna | 2019-04-20T22-11-43_95300000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 2.466 stddev = 0.012 reference, 1.020 target [samples]; known correct: -1.075 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-11-43_95300000_luna <--> 2019-04-20T22-11-43_95300000_brevnov (pass 1)
reference error = -0.238407 ppm, target error = -0.033696 ppm
Measured dist: 2.054885 target fitness: 2.223614 stddevs: 1.951129 target, 0.062924 reference
gold result: -1.074668
2019-04-20T22-11-43_95300000_luna <--> 2019-04-20T22-11-43_95300000_brevnov (pass 2)
snr: 34.2 61.5 dB
reference error = -0.039133 ppm, target error = -0.020165 ppm
Measured dist: 2.465869 target fitness: 2.223133 stddevs: 1.019875 target, 0.012283 reference
gold result: -1.074668
| correlation 4188 | 2019-04-20T22-11-43_95300000_luna | 2019-04-20T22-11-43_95300000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 40.893 stddev = 0.007 reference, 1.104 target [samples]; known correct: 38.776 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-11-43_95300000_luna <--> 2019-04-20T22-11-43_95300000_brmlab (pass 1)
reference error = -0.624335 ppm, target error = -0.005859 ppm
Measured dist: 40.691903 target fitness: 2.240781 stddevs: 3.971121 target, 0.168719 reference
gold result: 38.775550
2019-04-20T22-11-43_95300000_luna <--> 2019-04-20T22-11-43_95300000_brmlab (pass 2)
snr: 34.2 39.4 dB
reference error = -0.003174 ppm, target error = 0.044529 ppm
Measured dist: 40.892882 target fitness: 2.251290 stddevs: 1.103911 target, 0.007260 reference
gold result: 38.775550
| correlation 4189 | 2019-04-20T22-11-43_95300000_brevnov | 2019-04-20T22-11-43_95300000_brmlab |
|---|
| 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 | 95300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 38.497 stddev = 0.006 reference, 0.601 target [samples]; known correct: 39.850 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-11-43_95300000_brevnov <--> 2019-04-20T22-11-43_95300000_brmlab (pass 1)
reference error = -0.371564 ppm, target error = -0.084804 ppm
Measured dist: 38.568339 target fitness: 2.268144 stddevs: 2.106740 target, 0.100605 reference
gold result: 39.850218
2019-04-20T22-11-43_95300000_brevnov <--> 2019-04-20T22-11-43_95300000_brmlab (pass 2)
snr: 61.5 39.3 dB
reference error = 0.013626 ppm, target error = -0.161623 ppm
Measured dist: 38.497013 target fitness: 2.264254 stddevs: 0.600524 target, 0.005781 reference
gold result: 39.850218
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
