TDOA measurements at 209936 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 4502 | 2019-04-20T23-18-14_209936000_pankrac | 2019-04-20T23-18-14_209936000_brmlab |
|---|
| gain | [13, 13, 13, 1] | [14, 14, 14, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 209936000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 3.992 stddev = 0.004 reference, 0.010 target [samples]; known correct: 4.028 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T23-18-14_209936000_pankrac <--> 2019-04-20T23-18-14_209936000_brmlab (pass 1)
reference error = 0.513938 ppm, target error = 0.510655 ppm
Measured dist: 3.982196 target fitness: 19.996897 stddevs: 0.694215 target, 0.139586 reference
gold result: 4.028168
2019-04-20T23-18-14_209936000_pankrac <--> 2019-04-20T23-18-14_209936000_brmlab (pass 2)
snr: 18.3 10.7 dB
reference error = 0.003500 ppm, target error = -0.000260 ppm
Measured dist: 3.991696 target fitness: 21.731933 stddevs: 0.010161 target, 0.004395 reference
gold result: 4.028168
| correlation 4503 | 2019-04-20T23-18-14_209936000_pankrac | 2019-04-20T23-18-14_209936000_luna |
|---|
| 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 | 209936000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -46.720 stddev = 0.011 reference, 0.055 target [samples]; known correct: -46.911 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T23-18-14_209936000_pankrac <--> 2019-04-20T23-18-14_209936000_luna (pass 1)
reference error = 0.273560 ppm, target error = 0.261667 ppm
Measured dist: -46.705929 target fitness: 11.416547 stddevs: 0.356430 target, 0.073970 reference
gold result: -46.910808
2019-04-20T23-18-14_209936000_pankrac <--> 2019-04-20T23-18-14_209936000_luna (pass 2)
snr: 18.3 5.6 dB
reference error = -0.002474 ppm, target error = -0.014331 ppm
Measured dist: -46.719613 target fitness: 12.051704 stddevs: 0.055303 target, 0.010600 reference
gold result: -46.910808
| correlation 4504 | 2019-04-20T23-18-14_209936000_pankrac | 2019-04-20T23-18-14_209936000_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 | 209936000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -60.732 stddev = 0.004 reference, 0.008 target [samples]; known correct: -60.620 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-18-14_209936000_pankrac <--> 2019-04-20T23-18-14_209936000_brevnov (pass 1)
reference error = -0.033848 ppm, target error = -0.039718 ppm
Measured dist: -60.727538 target fitness: 35.910726 stddevs: 0.054166 target, 0.010304 reference
gold result: -60.619628
2019-04-20T23-18-14_209936000_pankrac <--> 2019-04-20T23-18-14_209936000_brevnov (pass 2)
snr: 18.3 20.6 dB
reference error = 0.000306 ppm, target error = -0.003921 ppm
Measured dist: -60.731696 target fitness: 35.855836 stddevs: 0.007586 target, 0.004100 reference
gold result: -60.619628
| correlation 4505 | 2019-04-20T23-18-14_209936000_brmlab | 2019-04-20T23-18-14_209936000_luna |
|---|
| gain | [14, 14, 14, 1] | [15, 15, 15, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 209936000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -50.874 stddev = 0.013 reference, 0.092 target [samples]; known correct: -50.939 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-18-14_209936000_brmlab <--> 2019-04-20T23-18-14_209936000_luna (pass 1)
reference error = -0.247920 ppm, target error = -0.260192 ppm
Measured dist: -50.878147 target fitness: 7.804764 stddevs: 0.365933 target, 0.068251 reference
gold result: -50.938975
2019-04-20T23-18-14_209936000_brmlab <--> 2019-04-20T23-18-14_209936000_luna (pass 2)
snr: 10.8 5.7 dB
reference error = 0.003819 ppm, target error = -0.008264 ppm
Measured dist: -50.873780 target fitness: 8.244130 stddevs: 0.091990 target, 0.013312 reference
gold result: -50.938975
| correlation 4506 | 2019-04-20T23-18-14_209936000_brmlab | 2019-04-20T23-18-14_209936000_brevnov |
|---|
| gain | [14, 14, 14, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 209936000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -64.792 stddev = 0.004 reference, 0.011 target [samples]; known correct: -64.648 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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|
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Correlator log
2019-04-20T23-18-14_209936000_brmlab <--> 2019-04-20T23-18-14_209936000_brevnov (pass 1)
reference error = -0.553418 ppm, target error = -0.549219 ppm
Measured dist: -64.805398 target fitness: 23.455117 stddevs: 0.737634 target, 0.150779 reference
gold result: -64.647796
2019-04-20T23-18-14_209936000_brmlab <--> 2019-04-20T23-18-14_209936000_brevnov (pass 2)
snr: 10.9 20.6 dB
reference error = 0.005107 ppm, target error = 0.001724 ppm
Measured dist: -64.792287 target fitness: 26.034938 stddevs: 0.010585 target, 0.004175 reference
gold result: -64.647796
| correlation 4507 | 2019-04-20T23-18-14_209936000_luna | 2019-04-20T23-18-14_209936000_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 | 209936000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -14.022 stddev = 0.014 reference, 0.063 target [samples]; known correct: -13.709 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-20T23-18-14_209936000_luna <--> 2019-04-20T23-18-14_209936000_brevnov (pass 1)
reference error = -0.273389 ppm, target error = -0.292961 ppm
Measured dist: -14.022091 target fitness: 11.307499 stddevs: 0.399903 target, 0.073984 reference
gold result: -13.708820
2019-04-20T23-18-14_209936000_luna <--> 2019-04-20T23-18-14_209936000_brevnov (pass 2)
snr: 5.6 20.6 dB
reference error = -0.034410 ppm, target error = -0.023145 ppm
Measured dist: -14.021740 target fitness: 12.100561 stddevs: 0.062618 target, 0.013801 reference
gold result: -13.708820
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
