TDOA measurements at 578000 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 3806 | 2019-04-20T19-56-43_578000000_pankrac | 2019-04-20T19-56-43_578000000_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 | 578000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 20.338 stddev = 0.014 reference, 69.450 target [samples]; known correct: -16.490 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T19-56-43_578000000_pankrac <--> 2019-04-20T19-56-43_578000000_luna (pass 1)
reference error = 0.278261 ppm, target error = 0.076070 ppm
Measured dist: 22.342161 target fitness: 2.686581 stddevs: 71.386024 target, 0.077896 reference
gold result: -16.489633
2019-04-20T19-56-43_578000000_pankrac <--> 2019-04-20T19-56-43_578000000_luna (pass 2)
snr: 3.5 3.8 dB
reference error = -0.010660 ppm, target error = 0.098009 ppm
Measured dist: 20.338066 target fitness: 2.676888 stddevs: 69.449631 target, 0.013871 reference
gold result: -16.489633
| correlation 3807 | 2019-04-20T19-56-43_578000000_pankrac | 2019-04-20T19-56-43_578000000_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 | 578000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -114.489 stddev = 0.004 reference, 71.385 target [samples]; known correct: 27.744 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-56-43_578000000_pankrac <--> 2019-04-20T19-56-43_578000000_brevnov (pass 1)
reference error = -0.098436 ppm, target error = 0.157786 ppm
Measured dist: 29.578057 target fitness: 2.697255 stddevs: 69.833786 target, 0.027326 reference
gold result: 27.744438
2019-04-20T19-56-43_578000000_pankrac <--> 2019-04-20T19-56-43_578000000_brevnov (pass 2)
snr: 3.5 3.9 dB
reference error = 0.001306 ppm, target error = 0.239173 ppm
Measured dist: -114.488746 target fitness: 2.697153 stddevs: 71.385170 target, 0.003840 reference
gold result: 27.744438
| correlation 3808 | 2019-04-20T19-56-43_578000000_pankrac | 2019-04-20T19-56-43_578000000_brmlab |
|---|
| gain | [15, 15, 15, 1] | [13, 13, 13, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 578000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 104.620 stddev = 0.004 reference, 71.755 target [samples]; known correct: -1.910 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-56-43_578000000_pankrac <--> 2019-04-20T19-56-43_578000000_brmlab (pass 1)
reference error = 0.519695 ppm, target error = -0.111289 ppm
Measured dist: 118.285470 target fitness: 2.681717 stddevs: 72.837677 target, 0.141292 reference
gold result: -1.909552
2019-04-20T19-56-43_578000000_pankrac <--> 2019-04-20T19-56-43_578000000_brmlab (pass 2)
snr: 3.5 3.3 dB
reference error = -0.004291 ppm, target error = -0.306876 ppm
Measured dist: 104.620085 target fitness: 2.703150 stddevs: 71.754959 target, 0.004359 reference
gold result: -1.909552
| correlation 3809 | 2019-04-20T19-56-43_578000000_luna | 2019-04-20T19-56-43_578000000_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 | 578000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 44.343 stddev = 0.013 reference, 24.861 target [samples]; known correct: 44.234 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-56-43_578000000_luna <--> 2019-04-20T19-56-43_578000000_brevnov (pass 1)
reference error = -0.376328 ppm, target error = -0.312712 ppm
Measured dist: 44.530920 target fitness: 2.688018 stddevs: 71.133263 target, 0.105139 reference
gold result: 44.234071
2019-04-20T19-56-43_578000000_luna <--> 2019-04-20T19-56-43_578000000_brevnov (pass 2)
snr: 3.8 3.9 dB
reference error = 0.010495 ppm, target error = 0.007744 ppm
Measured dist: 44.342859 target fitness: 3.374054 stddevs: 24.861019 target, 0.012961 reference
gold result: 44.234071
| correlation 3810 | 2019-04-20T19-56-43_578000000_luna | 2019-04-20T19-56-43_578000000_brmlab |
|---|
| gain | [15, 15, 15, 1] | [13, 13, 13, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 578000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 14.895 stddev = 0.009 reference, 5.624 target [samples]; known correct: 14.580 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-56-43_578000000_luna <--> 2019-04-20T19-56-43_578000000_brmlab (pass 1)
reference error = 0.252917 ppm, target error = 0.248534 ppm
Measured dist: 14.882162 target fitness: 2.841126 stddevs: 41.554543 target, 0.072045 reference
gold result: 14.580081
2019-04-20T19-56-43_578000000_luna <--> 2019-04-20T19-56-43_578000000_brmlab (pass 2)
snr: 3.8 2.9 dB
reference error = -0.005078 ppm, target error = -0.012725 ppm
Measured dist: 14.895233 target fitness: 3.552882 stddevs: 5.623898 target, 0.009206 reference
gold result: 14.580081
| correlation 3811 | 2019-04-20T19-56-43_578000000_brevnov | 2019-04-20T19-56-43_578000000_brmlab |
|---|
| gain | [15, 15, 15, 1] | [13, 13, 13, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 578000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -29.594 stddev = 0.009 reference, 14.102 target [samples]; known correct: -29.654 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-56-43_578000000_brevnov <--> 2019-04-20T19-56-43_578000000_brmlab (pass 1)
reference error = 0.579845 ppm, target error = 0.419623 ppm
Measured dist: -29.199310 target fitness: 2.677287 stddevs: 70.667076 target, 0.157500 reference
gold result: -29.653990
2019-04-20T19-56-43_578000000_brevnov <--> 2019-04-20T19-56-43_578000000_brmlab (pass 2)
snr: 3.9 3.5 dB
reference error = 0.028918 ppm, target error = 0.026565 ppm
Measured dist: -29.594376 target fitness: 3.311557 stddevs: 14.101919 target, 0.009036 reference
gold result: -29.653990
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
