TDOA measurements at 102900 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 4358 | 2019-04-20T23-50-38_103400000_pankrac | 2019-04-20T23-50-38_103400000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103400000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 38.201 stddev = 0.011 reference, 0.444 target [samples]; known correct: 41.884 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_brmlab (pass 1)
reference error = 0.488360 ppm, target error = 0.054413 ppm
Measured dist: 38.131683 target fitness: 2.222242 stddevs: 3.392847 target, 0.134549 reference
gold result: 41.883851
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_brmlab (pass 2)
snr: 34.4 36.7 dB
reference error = 0.034966 ppm, target error = 0.038369 ppm
Measured dist: 38.200973 target fitness: 2.223502 stddevs: 0.443778 target, 0.010673 reference
gold result: 41.883851
| correlation 4359 | 2019-04-20T23-50-38_103400000_pankrac | 2019-04-20T23-50-38_103400000_luna |
|---|
| gain | [9, 9, 9, 1] | [9, 9, 9, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103400000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 33.064 stddev = 0.008 reference, 0.461 target [samples]; known correct: 34.954 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_luna (pass 1)
reference error = 0.311952 ppm, target error = 0.064676 ppm
Measured dist: 33.534440 target fitness: 2.209741 stddevs: 1.874988 target, 0.084172 reference
gold result: 34.954401
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_luna (pass 2)
snr: 34.4 29.6 dB
reference error = -0.016480 ppm, target error = -0.026989 ppm
Measured dist: 33.064225 target fitness: 2.206921 stddevs: 0.460596 target, 0.007844 reference
gold result: 34.954401
| correlation 4360 | 2019-04-20T23-50-38_103400000_pankrac | 2019-04-20T23-50-38_103400000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103400000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -23.672 stddev = 0.004 reference, 2.166 target [samples]; known correct: -23.634 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_brevnov (pass 1)
reference error = -0.021646 ppm, target error = -0.006080 ppm
Measured dist: -23.667009 target fitness: 1.690678 stddevs: 2.182031 target, 0.007320 reference
gold result: -23.634450
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_brevnov (pass 2)
snr: 34.4 27.5 dB
reference error = 0.002020 ppm, target error = 0.010338 ppm
Measured dist: -23.672054 target fitness: 1.690771 stddevs: 2.165856 target, 0.003994 reference
gold result: -23.634450
| correlation 4361 | 2019-04-20T23-50-38_103400000_brmlab | 2019-04-20T23-50-38_103400000_luna |
|---|
| gain | [5, 5, 5, 1] | [9, 9, 9, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103400000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -5.183 stddev = 0.007 reference, 0.030 target [samples]; known correct: -6.929 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-50-38_103400000_brmlab <--> 2019-04-20T23-50-38_103400000_luna (pass 1)
reference error = -0.231991 ppm, target error = -0.053959 ppm
Measured dist: -5.589295 target fitness: 2.235781 stddevs: 1.504763 target, 0.063350 reference
gold result: -6.929450
2019-04-20T23-50-38_103400000_brmlab <--> 2019-04-20T23-50-38_103400000_luna (pass 2)
snr: 36.4 29.6 dB
reference error = 0.006342 ppm, target error = -0.000197 ppm
Measured dist: -5.182609 target fitness: 2.236114 stddevs: 0.029604 target, 0.006836 reference
gold result: -6.929450
| correlation 4362 | 2019-04-20T23-50-38_103400000_brmlab | 2019-04-20T23-50-38_103400000_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 | 103400000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -62.771 stddev = 0.005 reference, 2.088 target [samples]; known correct: -65.518 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-50-38_103400000_brmlab <--> 2019-04-20T23-50-38_103400000_brevnov (pass 1)
reference error = -0.555108 ppm, target error = -0.099258 ppm
Measured dist: -62.788167 target fitness: 1.723651 stddevs: 3.770849 target, 0.152766 reference
gold result: -65.518301
2019-04-20T23-50-38_103400000_brmlab <--> 2019-04-20T23-50-38_103400000_brevnov (pass 2)
snr: 36.8 27.5 dB
reference error = 0.013204 ppm, target error = 0.020440 ppm
Measured dist: -62.771252 target fitness: 1.753192 stddevs: 2.087548 target, 0.005347 reference
gold result: -65.518301
| correlation 4363 | 2019-04-20T23-50-38_103400000_luna | 2019-04-20T23-50-38_103400000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103400000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -57.671 stddev = 0.007 reference, 2.152 target [samples]; known correct: -58.589 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-50-38_103400000_luna <--> 2019-04-20T23-50-38_103400000_brevnov (pass 1)
reference error = -0.308252 ppm, target error = -0.029096 ppm
Measured dist: -58.131137 target fitness: 1.733836 stddevs: 2.785100 target, 0.083971 reference
gold result: -58.588851
2019-04-20T23-50-38_103400000_luna <--> 2019-04-20T23-50-38_103400000_brevnov (pass 2)
snr: 29.6 27.5 dB
reference error = -0.007236 ppm, target error = 0.009693 ppm
Measured dist: -57.671376 target fitness: 1.748150 stddevs: 2.152143 target, 0.006762 reference
gold result: -58.588851
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
