TDOA measurements at 101600 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 4136 | 2019-04-20T21-54-59_101100000_pankrac | 2019-04-20T21-54-59_101100000_brmlab |
|---|
| gain | [15, 15, 15, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101100000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 32.297 stddev = 0.007 reference, 5.368 target [samples]; known correct: 31.475 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T21-54-59_101100000_pankrac <--> 2019-04-20T21-54-59_101100000_brmlab (pass 1)
reference error = -0.362041 ppm, target error = -0.008096 ppm
Measured dist: 32.461105 target fitness: 1.817097 stddevs: 5.716970 target, 0.098851 reference
gold result: 31.474600
2019-04-20T21-54-59_101100000_pankrac <--> 2019-04-20T21-54-59_101100000_brmlab (pass 2)
snr: 1.4 31.9 dB
reference error = 0.016968 ppm, target error = 0.007496 ppm
Measured dist: 32.297150 target fitness: 1.831339 stddevs: 5.368312 target, 0.006556 reference
gold result: 31.474600
| correlation 4137 | 2019-04-20T21-54-59_101100000_pankrac | 2019-04-20T21-54-59_101100000_luna |
|---|
| gain | [15, 15, 15, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101100000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 21.470 stddev = 0.013 reference, 5.239 target [samples]; known correct: 29.154 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-54-59_101100000_pankrac <--> 2019-04-20T21-54-59_101100000_luna (pass 1)
reference error = 0.272358 ppm, target error = 0.008280 ppm
Measured dist: 19.948616 target fitness: 1.799223 stddevs: 5.931130 target, 0.074875 reference
gold result: 29.153519
2019-04-20T21-54-59_101100000_pankrac <--> 2019-04-20T21-54-59_101100000_luna (pass 2)
snr: 1.4 27.6 dB
reference error = 0.037526 ppm, target error = -0.050530 ppm
Measured dist: 21.470413 target fitness: 1.806842 stddevs: 5.239086 target, 0.013010 reference
gold result: 29.153519
| correlation 4138 | 2019-04-20T21-54-59_101100000_pankrac | 2019-04-20T21-54-59_101100000_brevnov |
|---|
| gain | [15, 15, 15, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101100000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -35.621 stddev = 0.004 reference, 5.367 target [samples]; known correct: -2.216 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-54-59_101100000_pankrac <--> 2019-04-20T21-54-59_101100000_brevnov (pass 1)
reference error = 0.006047 ppm, target error = 0.029995 ppm
Measured dist: -35.590777 target fitness: 1.864676 stddevs: 5.353976 target, 0.004928 reference
gold result: -2.216170
2019-04-20T21-54-59_101100000_pankrac <--> 2019-04-20T21-54-59_101100000_brevnov (pass 2)
snr: 1.4 41.3 dB
reference error = 0.001808 ppm, target error = 0.025996 ppm
Measured dist: -35.620978 target fitness: 1.864162 stddevs: 5.367054 target, 0.004048 reference
gold result: -2.216170
| correlation 4139 | 2019-04-20T21-54-59_101100000_brmlab | 2019-04-20T21-54-59_101100000_luna |
|---|
| gain | [5, 5, 5, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101100000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -11.169 stddev = 0.009 reference, 0.598 target [samples]; known correct: -2.321 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-54-59_101100000_brmlab <--> 2019-04-20T21-54-59_101100000_luna (pass 1)
reference error = 0.667996 ppm, target error = -0.032224 ppm
Measured dist: -8.570929 target fitness: 1.942417 stddevs: 5.253687 target, 0.179810 reference
gold result: -2.321080
2019-04-20T21-54-59_101100000_brmlab <--> 2019-04-20T21-54-59_101100000_luna (pass 2)
snr: 31.7 27.6 dB
reference error = -0.019627 ppm, target error = -0.037083 ppm
Measured dist: -11.168550 target fitness: 1.950332 stddevs: 0.597800 target, 0.008825 reference
gold result: -2.321080
| correlation 4140 | 2019-04-20T21-54-59_101100000_brmlab | 2019-04-20T21-54-59_101100000_brevnov |
|---|
| gain | [5, 5, 5, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101100000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -69.069 stddev = 0.005 reference, 1.616 target [samples]; known correct: -33.691 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-54-59_101100000_brmlab <--> 2019-04-20T21-54-59_101100000_brevnov (pass 1)
reference error = 0.360806 ppm, target error = -0.000235 ppm
Measured dist: -69.233386 target fitness: 2.173047 stddevs: 3.190614 target, 0.097774 reference
gold result: -33.690770
2019-04-20T21-54-59_101100000_brmlab <--> 2019-04-20T21-54-59_101100000_brevnov (pass 2)
snr: 31.9 41.3 dB
reference error = -0.010903 ppm, target error = -0.001438 ppm
Measured dist: -69.068925 target fitness: 2.182983 stddevs: 1.616002 target, 0.004808 reference
gold result: -33.690770
| correlation 4141 | 2019-04-20T21-54-59_101100000_luna | 2019-04-20T21-54-59_101100000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101100000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -58.013 stddev = 0.008 reference, 1.267 target [samples]; known correct: -31.370 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-54-59_101100000_luna <--> 2019-04-20T21-54-59_101100000_brevnov (pass 1)
reference error = -0.313000 ppm, target error = 0.028018 ppm
Measured dist: -57.715645 target fitness: 2.089307 stddevs: 2.584262 target, 0.085266 reference
gold result: -31.369689
2019-04-20T21-54-59_101100000_luna <--> 2019-04-20T21-54-59_101100000_brevnov (pass 2)
snr: 27.6 41.3 dB
reference error = 0.015465 ppm, target error = 0.018970 ppm
Measured dist: -58.013415 target fitness: 2.092012 stddevs: 1.267038 target, 0.007977 reference
gold result: -31.369689
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
