TDOA measurements at 227360 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 4496 | 2019-04-20T20-20-44_227360000_pankrac | 2019-04-20T20-20-44_227360000_brmlab |
|---|
| gain | [0, 0, 0, 1] | [0, 0, 0, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 227360000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 0.004 stddev = 0.004 reference, 0.004 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-20-44_227360000_pankrac <--> 2019-04-20T20-20-44_227360000_brmlab (pass 1)
reference error = 0.506929 ppm, target error = 0.504118 ppm
Measured dist: -0.008509 target fitness: 34.261684 stddevs: 0.682278 target, 0.137348 reference
gold result: -0.000000
2019-04-20T20-20-44_227360000_pankrac <--> 2019-04-20T20-20-44_227360000_brmlab (pass 2)
snr: 41.3 39.1 dB
reference error = 0.003821 ppm, target error = -0.000817 ppm
Measured dist: 0.003933 target fitness: 36.239658 stddevs: 0.004366 target, 0.004462 reference
gold result: -0.000000
| correlation 4497 | 2019-04-20T20-20-44_227360000_pankrac | 2019-04-20T20-20-44_227360000_luna |
|---|
| gain | [0, 0, 0, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 227360000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -0.006 stddev = 0.009 reference, 0.044 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-20-44_227360000_pankrac <--> 2019-04-20T20-20-44_227360000_luna (pass 1)
reference error = 0.221809 ppm, target error = 0.248117 ppm
Measured dist: -0.020846 target fitness: 33.131512 stddevs: 0.334667 target, 0.060011 reference
gold result: -0.000000
2019-04-20T20-20-44_227360000_pankrac <--> 2019-04-20T20-20-44_227360000_luna (pass 2)
snr: 41.3 35.8 dB
reference error = -0.000687 ppm, target error = 0.030899 ppm
Measured dist: -0.005594 target fitness: 33.466073 stddevs: 0.043646 target, 0.009424 reference
gold result: -0.000000
| correlation 4498 | 2019-04-20T20-20-44_227360000_pankrac | 2019-04-20T20-20-44_227360000_brevnov |
|---|
| gain | [0, 0, 0, 1] | [0, 0, 0, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 227360000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 0.000 stddev = 0.004 reference, 0.010 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-20-44_227360000_pankrac <--> 2019-04-20T20-20-44_227360000_brevnov (pass 1)
reference error = -0.107968 ppm, target error = -0.105611 ppm
Measured dist: 0.000038 target fitness: 40.380767 stddevs: 0.143110 target, 0.029449 reference
gold result: -0.000000
2019-04-20T20-20-44_227360000_pankrac <--> 2019-04-20T20-20-44_227360000_brevnov (pass 2)
snr: 41.3 40.4 dB
reference error = 0.006165 ppm, target error = 0.006682 ppm
Measured dist: 0.000255 target fitness: 40.356026 stddevs: 0.009938 target, 0.004037 reference
gold result: -0.000000
| correlation 4499 | 2019-04-20T20-20-44_227360000_brmlab | 2019-04-20T20-20-44_227360000_luna |
|---|
| gain | [0, 0, 0, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 227360000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -0.009 stddev = 0.010 reference, 0.048 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-20-44_227360000_brmlab <--> 2019-04-20T20-20-44_227360000_luna (pass 1)
reference error = -0.286228 ppm, target error = -0.253395 ppm
Measured dist: 0.011347 target fitness: 28.042051 stddevs: 0.338578 target, 0.077392 reference
gold result: -0.000000
2019-04-20T20-20-44_227360000_brmlab <--> 2019-04-20T20-20-44_227360000_luna (pass 2)
snr: 40.0 35.8 dB
reference error = -0.001643 ppm, target error = 0.033811 ppm
Measured dist: -0.009375 target fitness: 28.317303 stddevs: 0.047992 target, 0.009644 reference
gold result: -0.000000
| correlation 4500 | 2019-04-20T20-20-44_227360000_brmlab | 2019-04-20T20-20-44_227360000_brevnov |
|---|
| gain | [0, 0, 0, 1] | [0, 0, 0, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 227360000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -0.001 stddev = 0.004 reference, 0.008 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-20-44_227360000_brmlab <--> 2019-04-20T20-20-44_227360000_brevnov (pass 1)
reference error = -0.612755 ppm, target error = -0.607783 ppm
Measured dist: -0.006147 target fitness: 31.768713 stddevs: 0.823156 target, 0.165415 reference
gold result: -0.000000
2019-04-20T20-20-44_227360000_brmlab <--> 2019-04-20T20-20-44_227360000_brevnov (pass 2)
snr: 39.2 40.4 dB
reference error = 0.003389 ppm, target error = 0.004951 ppm
Measured dist: -0.001111 target fitness: 34.574210 stddevs: 0.007793 target, 0.003753 reference
gold result: -0.000000
| correlation 4501 | 2019-04-20T20-20-44_227360000_luna | 2019-04-20T20-20-44_227360000_brevnov |
|---|
| gain | [6, 6, 6, 1] | [0, 0, 0, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 227360000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 0.005 stddev = 0.011 reference, 0.016 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-20-44_227360000_luna <--> 2019-04-20T20-20-44_227360000_brevnov (pass 1)
reference error = -0.345874 ppm, target error = -0.353568 ppm
Measured dist: -0.002624 target fitness: 31.680639 stddevs: 0.474672 target, 0.092971 reference
gold result: -0.000000
2019-04-20T20-20-44_227360000_luna <--> 2019-04-20T20-20-44_227360000_brevnov (pass 2)
snr: 35.8 40.4 dB
reference error = 0.021496 ppm, target error = -0.007489 ppm
Measured dist: 0.005433 target fitness: 32.176405 stddevs: 0.016078 target, 0.010860 reference
gold result: -0.000000
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
