TDOA measurements at 570000 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 4472 | 2019-04-20T19-49-18_570000000_pankrac | 2019-04-20T19-49-18_570000000_luna |
|---|
| gain | [15, 15, 15, 1] | [11, 11, 11, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 570000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -66.200 stddev = 0.018 reference, 0.033 target [samples]; known correct: -66.151 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T19-49-18_570000000_pankrac <--> 2019-04-20T19-49-18_570000000_luna (pass 1)
reference error = 0.394576 ppm, target error = 0.371023 ppm
Measured dist: -66.132730 target fitness: 21.792665 stddevs: 0.503795 target, 0.105718 reference
gold result: -66.151099
2019-04-20T19-49-18_570000000_pankrac <--> 2019-04-20T19-49-18_570000000_luna (pass 2)
snr: 6.7 5.8 dB
reference error = -0.011126 ppm, target error = -0.019860 ppm
Measured dist: -66.200167 target fitness: 40.653242 stddevs: 0.033055 target, 0.017525 reference
gold result: -66.151099
| correlation 4473 | 2019-04-20T19-49-18_570000000_pankrac | 2019-04-20T19-49-18_570000000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [11, 11, 11, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 570000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -55.232 stddev = 0.004 reference, 0.025 target [samples]; known correct: -55.191 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-49-18_570000000_pankrac <--> 2019-04-20T19-49-18_570000000_brevnov (pass 1)
reference error = -0.019317 ppm, target error = -0.020494 ppm
Measured dist: -55.228099 target fitness: 38.072962 stddevs: 0.038748 target, 0.006213 reference
gold result: -55.190761
2019-04-20T19-49-18_570000000_pankrac <--> 2019-04-20T19-49-18_570000000_brevnov (pass 2)
snr: 6.7 6.5 dB
reference error = -0.001374 ppm, target error = 0.001716 ppm
Measured dist: -55.231776 target fitness: 38.081828 stddevs: 0.024896 target, 0.003725 reference
gold result: -55.190761
| correlation 4474 | 2019-04-20T19-49-18_570000000_pankrac | 2019-04-20T19-49-18_570000000_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 | 570000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -8.778 stddev = 0.011 reference, 2.564 target [samples]; known correct: -8.895 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-49-18_570000000_pankrac <--> 2019-04-20T19-49-18_570000000_brmlab (pass 1)
reference error = 0.551924 ppm, target error = 0.357450 ppm
Measured dist: -8.345651 target fitness: 2.707605 stddevs: 63.142811 target, 0.152539 reference
gold result: -8.894771
2019-04-20T19-49-18_570000000_pankrac <--> 2019-04-20T19-49-18_570000000_brmlab (pass 2)
snr: 6.7 4.4 dB
reference error = 0.038389 ppm, target error = 0.045151 ppm
Measured dist: -8.778294 target fitness: 7.125605 stddevs: 2.563681 target, 0.011375 reference
gold result: -8.894771
| correlation 4475 | 2019-04-20T19-49-18_570000000_luna | 2019-04-20T19-49-18_570000000_brevnov |
|---|
| gain | [11, 11, 11, 1] | [11, 11, 11, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 570000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 10.935 stddev = 0.017 reference, 0.020 target [samples]; known correct: 10.960 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-49-18_570000000_luna <--> 2019-04-20T19-49-18_570000000_brevnov (pass 1)
reference error = -0.384601 ppm, target error = -0.396015 ppm
Measured dist: 10.952149 target fitness: 24.658115 stddevs: 0.540450 target, 0.105999 reference
gold result: 10.960337
2019-04-20T19-49-18_570000000_luna <--> 2019-04-20T19-49-18_570000000_brevnov (pass 2)
snr: 5.8 6.6 dB
reference error = -0.015897 ppm, target error = -0.004270 ppm
Measured dist: 10.935292 target fitness: 52.380285 stddevs: 0.019859 target, 0.016804 reference
gold result: 10.960337
| correlation 4476 | 2019-04-20T19-49-18_570000000_luna | 2019-04-20T19-49-18_570000000_brmlab |
|---|
| gain | [11, 11, 11, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 570000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 57.591 stddev = 0.019 reference, 0.986 target [samples]; known correct: 57.256 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-20T19-49-18_570000000_luna <--> 2019-04-20T19-49-18_570000000_brmlab (pass 1)
reference error = 0.206836 ppm, target error = 0.208942 ppm
Measured dist: 57.620764 target fitness: 6.945428 stddevs: 2.622008 target, 0.057944 reference
gold result: 57.256327
2019-04-20T19-49-18_570000000_luna <--> 2019-04-20T19-49-18_570000000_brmlab (pass 2)
snr: 5.8 5.0 dB
reference error = -0.003182 ppm, target error = 0.015573 ppm
Measured dist: 57.590682 target fitness: 9.256458 stddevs: 0.986442 target, 0.019027 reference
gold result: 57.256327
| correlation 4477 | 2019-04-20T19-49-18_570000000_brevnov | 2019-04-20T19-49-18_570000000_brmlab |
|---|
| gain | [11, 11, 11, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 570000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 46.500 stddev = 0.006 reference, 0.045 target [samples]; known correct: 46.296 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-49-18_570000000_brevnov <--> 2019-04-20T19-49-18_570000000_brmlab (pass 1)
reference error = 0.618143 ppm, target error = 0.547429 ppm
Measured dist: 46.622626 target fitness: 2.766439 stddevs: 59.453541 target, 0.168412 reference
gold result: 46.295990
2019-04-20T19-49-18_570000000_brevnov <--> 2019-04-20T19-49-18_570000000_brmlab (pass 2)
snr: 6.5 4.7 dB
reference error = -0.014112 ppm, target error = -0.008840 ppm
Measured dist: 46.500310 target fitness: 9.241935 stddevs: 0.044925 target, 0.005687 reference
gold result: 46.295990
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
