TDOA measurements at 103400 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 4364 | 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 | -2.145 stddev = 0.011 reference, 1.994 target [samples]; known correct: 0.877 |
| 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 = -0.080869 ppm
Measured dist: -2.850960 target fitness: 2.083715 stddevs: 4.484504 target, 0.134549 reference
gold result: 0.876883
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_brmlab (pass 2)
snr: 12.6 19.2 dB
reference error = 0.034966 ppm, target error = -0.039956 ppm
Measured dist: -2.145247 target fitness: 2.107186 stddevs: 1.994206 target, 0.010673 reference
gold result: 0.876883
| correlation 4365 | 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 | -48.158 stddev = 0.008 reference, 3.128 target [samples]; known correct: -49.049 |
| 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 = -0.009907 ppm
Measured dist: -46.457075 target fitness: 2.082635 stddevs: 3.773168 target, 0.084172 reference
gold result: -49.049125
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_luna (pass 2)
snr: 12.6 16.3 dB
reference error = -0.016480 ppm, target error = -0.080079 ppm
Measured dist: -48.158306 target fitness: 2.082289 stddevs: 3.127775 target, 0.007844 reference
gold result: -49.049125
| correlation 4366 | 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 | -59.675 stddev = 0.004 reference, 2.263 target [samples]; known correct: -58.566 |
| 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 = -0.069067 ppm
Measured dist: -59.727117 target fitness: 2.232523 stddevs: 2.275153 target, 0.007320 reference
gold result: -58.565514
2019-04-20T23-50-38_103400000_pankrac <--> 2019-04-20T23-50-38_103400000_brevnov (pass 2)
snr: 12.6 33.4 dB
reference error = 0.002020 ppm, target error = -0.084638 ppm
Measured dist: -59.674957 target fitness: 2.232875 stddevs: 2.263160 target, 0.003994 reference
gold result: -58.565514
| correlation 4367 | 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 | -45.256 stddev = 0.007 reference, 2.174 target [samples]; known correct: -49.926 |
| 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 = -0.059489 ppm
Measured dist: -44.736045 target fitness: 2.078665 stddevs: 2.846200 target, 0.063350 reference
gold result: -49.926007
2019-04-20T23-50-38_103400000_brmlab <--> 2019-04-20T23-50-38_103400000_luna (pass 2)
snr: 18.9 16.3 dB
reference error = 0.006342 ppm, target error = -0.121830 ppm
Measured dist: -45.256393 target fitness: 2.077379 stddevs: 2.173603 target, 0.006836 reference
gold result: -49.926007
| correlation 4368 | 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 | -57.704 stddev = 0.005 reference, 1.631 target [samples]; known correct: -59.442 |
| 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 = 0.032031 ppm
Measured dist: -56.834453 target fitness: 2.216261 stddevs: 4.356919 target, 0.152766 reference
gold result: -59.442397
2019-04-20T23-50-38_103400000_brmlab <--> 2019-04-20T23-50-38_103400000_brevnov (pass 2)
snr: 19.3 33.4 dB
reference error = 0.013204 ppm, target error = -0.082603 ppm
Measured dist: -57.704317 target fitness: 2.243862 stddevs: 1.631302 target, 0.005347 reference
gold result: -59.442397
| correlation 4369 | 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 | -12.483 stddev = 0.007 reference, 1.268 target [samples]; known correct: -9.516 |
| 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 = -0.005411 ppm
Measured dist: -12.138030 target fitness: 2.024550 stddevs: 2.589588 target, 0.083971 reference
gold result: -9.516389
2019-04-20T23-50-38_103400000_luna <--> 2019-04-20T23-50-38_103400000_brevnov (pass 2)
snr: 16.3 33.4 dB
reference error = -0.007236 ppm, target error = 0.099059 ppm
Measured dist: -12.482672 target fitness: 2.022705 stddevs: 1.267809 target, 0.006762 reference
gold result: -9.516389
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
