TDOA measurements at 99300 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 4328 | 2019-04-20T23-30-28_100200000_pankrac | 2019-04-20T23-30-28_100200000_luna |
|---|
| gain | [2, 2, 2, 1] | [7, 7, 7, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 100200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 12.614 stddev = 0.009 reference, 1.559 target [samples]; known correct: 12.168 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T23-30-28_100200000_pankrac <--> 2019-04-20T23-30-28_100200000_luna (pass 1)
reference error = 0.326266 ppm, target error = 0.096605 ppm
Measured dist: 7.484427 target fitness: 1.109065 stddevs: 9.460664 target, 0.089118 reference
gold result: 12.168451
2019-04-20T23-30-28_100200000_pankrac <--> 2019-04-20T23-30-28_100200000_luna (pass 2)
snr: 24.5 22.8 dB
reference error = -0.014283 ppm, target error = 0.005101 ppm
Measured dist: 12.613900 target fitness: 1.109300 stddevs: 1.559176 target, 0.009105 reference
gold result: 12.168451
| correlation 4329 | 2019-04-20T23-30-28_100200000_pankrac | 2019-04-20T23-30-28_100200000_brmlab |
|---|
| gain | [2, 2, 2, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 100200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 25.986 stddev = 0.006 reference, 1.503 target [samples]; known correct: 24.029 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-20T23-30-28_100200000_pankrac <--> 2019-04-20T23-30-28_100200000_brmlab (pass 1)
reference error = 0.507928 ppm, target error = 0.020576 ppm
Measured dist: 15.804202 target fitness: 1.115960 stddevs: 35.938915 target, 0.137483 reference
gold result: 24.028855
2019-04-20T23-30-28_100200000_pankrac <--> 2019-04-20T23-30-28_100200000_brmlab (pass 2)
snr: 24.5 39.5 dB
reference error = 0.017070 ppm, target error = 0.138755 ppm
Measured dist: 25.985825 target fitness: 1.109346 stddevs: 1.502654 target, 0.006182 reference
gold result: 24.028855
| correlation 4330 | 2019-04-20T23-30-28_100200000_pankrac | 2019-04-20T23-30-28_100200000_brevnov |
|---|
| gain | [2, 2, 2, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 100200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -33.390 stddev = 0.004 reference, 1.130 target [samples]; known correct: -34.387 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-30-28_100200000_pankrac <--> 2019-04-20T23-30-28_100200000_brevnov (pass 1)
reference error = -0.020044 ppm, target error = 0.040423 ppm
Measured dist: -33.363244 target fitness: 1.113404 stddevs: 1.166298 target, 0.006259 reference
gold result: -34.387361
2019-04-20T23-30-28_100200000_pankrac <--> 2019-04-20T23-30-28_100200000_brevnov (pass 2)
snr: 24.5 46.7 dB
reference error = -0.000377 ppm, target error = 0.034790 ppm
Measured dist: -33.390217 target fitness: 1.113923 stddevs: 1.129789 target, 0.003897 reference
gold result: -34.387361
| correlation 4331 | 2019-04-20T23-30-28_100200000_luna | 2019-04-20T23-30-28_100200000_brmlab |
|---|
| gain | [7, 7, 7, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 100200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 14.107 stddev = 0.009 reference, 1.427 target [samples]; known correct: 11.860 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-30-28_100200000_luna <--> 2019-04-20T23-30-28_100200000_brmlab (pass 1)
reference error = 0.207137 ppm, target error = 0.005730 ppm
Measured dist: 10.563159 target fitness: 1.106140 stddevs: 6.260685 target, 0.057966 reference
gold result: 11.860404
2019-04-20T23-30-28_100200000_luna <--> 2019-04-20T23-30-28_100200000_brmlab (pass 2)
snr: 22.8 39.3 dB
reference error = -0.004833 ppm, target error = 0.066012 ppm
Measured dist: 14.107064 target fitness: 1.107120 stddevs: 1.427252 target, 0.009204 reference
gold result: 11.860404
| correlation 4332 | 2019-04-20T23-30-28_100200000_luna | 2019-04-20T23-30-28_100200000_brevnov |
|---|
| gain | [7, 7, 7, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 100200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -45.918 stddev = 0.008 reference, 0.912 target [samples]; known correct: -46.556 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-30-28_100200000_luna <--> 2019-04-20T23-30-28_100200000_brevnov (pass 1)
reference error = -0.348236 ppm, target error = -0.067371 ppm
Measured dist: -40.639706 target fitness: 1.112241 stddevs: 4.690176 target, 0.096142 reference
gold result: -46.555812
2019-04-20T23-30-28_100200000_luna <--> 2019-04-20T23-30-28_100200000_brevnov (pass 2)
snr: 22.8 46.8 dB
reference error = 0.012997 ppm, target error = 0.023150 ppm
Measured dist: -45.917656 target fitness: 1.120541 stddevs: 0.912437 target, 0.008019 reference
gold result: -46.555812
| correlation 4333 | 2019-04-20T23-30-28_100200000_brmlab | 2019-04-20T23-30-28_100200000_brevnov |
|---|
| gain | [4, 4, 4, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 100200000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -59.251 stddev = 0.010 reference, 1.313 target [samples]; known correct: -58.416 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-30-28_100200000_brmlab <--> 2019-04-20T23-30-28_100200000_brevnov (pass 1)
reference error = -0.512239 ppm, target error = -0.017605 ppm
Measured dist: -65.063956 target fitness: 1.113501 stddevs: 29.364218 target, 0.139929 reference
gold result: -58.416216
2019-04-20T23-30-28_100200000_brmlab <--> 2019-04-20T23-30-28_100200000_brevnov (pass 2)
snr: 39.5 46.7 dB
reference error = -0.033889 ppm, target error = -0.060112 ppm
Measured dist: -59.250867 target fitness: 1.122062 stddevs: 1.313447 target, 0.009920 reference
gold result: -58.416216
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
