TDOA measurements at 650000 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 3794 | 2019-04-20T19-53-14_650000000_pankrac | 2019-04-20T19-53-14_650000000_luna |
|---|
| 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 | 650000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -81.047 stddev = 0.011 reference, 0.010 target [samples]; known correct: -79.709 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-53-14_650000000_pankrac <--> 2019-04-20T19-53-14_650000000_luna (pass 1)
reference error = 0.375882 ppm, target error = 0.364511 ppm
Measured dist: -80.988602 target fitness: 7.022161 stddevs: 0.507081 target, 0.101514 reference
gold result: -79.708515
2019-04-20T19-53-14_650000000_pankrac <--> 2019-04-20T19-53-14_650000000_luna (pass 2)
snr: 3.8 3.7 dB
reference error = -0.016147 ppm, target error = -0.002502 ppm
Measured dist: -81.047063 target fitness: 26.511637 stddevs: 0.010374 target, 0.011395 reference
gold result: -79.708515
| correlation 3795 | 2019-04-20T19-53-14_650000000_pankrac | 2019-04-20T19-53-14_650000000_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 | 650000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -25.330 stddev = 0.005 reference, 0.041 target [samples]; known correct: -23.986 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-53-14_650000000_pankrac <--> 2019-04-20T19-53-14_650000000_brmlab (pass 1)
reference error = 0.592714 ppm, target error = 0.579104 ppm
Measured dist: -25.267948 target fitness: 3.377822 stddevs: 12.839655 target, 0.162338 reference
gold result: -23.986421
2019-04-20T19-53-14_650000000_pankrac <--> 2019-04-20T19-53-14_650000000_brmlab (pass 2)
snr: 3.8 4.8 dB
reference error = -0.009189 ppm, target error = -0.002183 ppm
Measured dist: -25.330160 target fitness: 14.943861 stddevs: 0.040702 target, 0.004776 reference
gold result: -23.986421
| correlation 3796 | 2019-04-20T19-53-14_650000000_pankrac | 2019-04-20T19-53-14_650000000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 650000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -31.974 stddev = 0.004 reference, 0.035 target [samples]; known correct: -30.718 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-53-14_650000000_pankrac <--> 2019-04-20T19-53-14_650000000_brevnov (pass 1)
reference error = -0.016333 ppm, target error = -0.018835 ppm
Measured dist: -31.968991 target fitness: 25.397623 stddevs: 0.042532 target, 0.005869 reference
gold result: -30.718217
2019-04-20T19-53-14_650000000_pankrac <--> 2019-04-20T19-53-14_650000000_brevnov (pass 2)
snr: 3.9 8.0 dB
reference error = 0.001929 ppm, target error = 0.000877 ppm
Measured dist: -31.974106 target fitness: 25.423718 stddevs: 0.034516 target, 0.004126 reference
gold result: -30.718217
| correlation 3797 | 2019-04-20T19-53-14_650000000_luna | 2019-04-20T19-53-14_650000000_brmlab |
|---|
| gain | [13, 13, 13, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 650000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 55.946 stddev = 0.011 reference, 0.048 target [samples]; known correct: 55.722 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-53-14_650000000_luna <--> 2019-04-20T19-53-14_650000000_brmlab (pass 1)
reference error = 0.202047 ppm, target error = 0.208356 ppm
Measured dist: 55.960609 target fitness: 21.238678 stddevs: 0.284779 target, 0.055358 reference
gold result: 55.722094
2019-04-20T19-53-14_650000000_luna <--> 2019-04-20T19-53-14_650000000_brmlab (pass 2)
snr: 3.7 4.6 dB
reference error = 0.018177 ppm, target error = 0.026229 ppm
Measured dist: 55.946265 target fitness: 29.236830 stddevs: 0.047690 target, 0.011354 reference
gold result: 55.722094
| correlation 3798 | 2019-04-20T19-53-14_650000000_luna | 2019-04-20T19-53-14_650000000_brevnov |
|---|
| gain | [13, 13, 13, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 650000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 49.221 stddev = 0.011 reference, 0.034 target [samples]; known correct: 48.990 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-53-14_650000000_luna <--> 2019-04-20T19-53-14_650000000_brevnov (pass 1)
reference error = -0.366354 ppm, target error = -0.373205 ppm
Measured dist: 49.210256 target fitness: 14.163987 stddevs: 0.508726 target, 0.100280 reference
gold result: 48.990299
2019-04-20T19-53-14_650000000_luna <--> 2019-04-20T19-53-14_650000000_brevnov (pass 2)
snr: 3.7 8.0 dB
reference error = -0.010482 ppm, target error = -0.016168 ppm
Measured dist: 49.220520 target fitness: 51.294839 stddevs: 0.034395 target, 0.010704 reference
gold result: 48.990299
| correlation 3799 | 2019-04-20T19-53-14_650000000_brmlab | 2019-04-20T19-53-14_650000000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 650000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -6.729 stddev = 0.005 reference, 0.089 target [samples]; known correct: -6.732 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T19-53-14_650000000_brmlab <--> 2019-04-20T19-53-14_650000000_brevnov (pass 1)
reference error = -0.563284 ppm, target error = -0.609526 ppm
Measured dist: -6.687448 target fitness: 8.725426 stddevs: 0.831921 target, 0.154449 reference
gold result: -6.731796
2019-04-20T19-53-14_650000000_brmlab <--> 2019-04-20T19-53-14_650000000_brevnov (pass 2)
snr: 4.6 8.0 dB
reference error = -0.012181 ppm, target error = -0.061894 ppm
Measured dist: -6.728544 target fitness: 29.474122 stddevs: 0.089284 target, 0.004506 reference
gold result: -6.731796
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
